What is the total due from all customers at 12/31?

ACCOUNTS RECEIVABLE SUBSIDIARY LEDGER CREDIT LIMIT: Credit Debit 406 ROSEMONT UNIVERSITY 121 E. Front Louisville, Kentucky 40202 DATE Description Oct. 1 Balance Forward Oct. 6 Invoice # 722 Oct. 13 Payment # 722 Nov. 17 Invoice # 724 Nov. 17 Payment # 724 Dec. 11 Invoice # 727 | Dec. 8 Payment #727 29,018.00 29,018.00 $125,000 Balance 0.00 29,018.00 0.00 2,460.00 0.00 4,174.00 0.00 2,460.00 2,460.00 4,174.00 4,174.00 407 CLAYBORN UNIVERSITY 13210 S. Upton Logansport, Indiana 46947 DATE Description Oct. 1 Balance Forward Dec. 7 Invoice # 728 CREDIT LIMIT: Credit Debit $125,000 Balance 0.00 7,252.00 0.00 7.252.00 7,252.00 CREDIT LIMIT: Credit Debit 408 BRANCH COLLEGE 242 W. Holt Rd. Trenton, Missouri 64683 DATE Description Oct. 1 Balance Forward Oct. 16 Payment # 721 Nov. 10 Invoice # 725 Nov. 17 Payment # 725 | Dec. 13 Invoice # 730 Dec. 22 Payment #730 45,351.00 $100,000 Balance 46,551.00 1,200.00 34,112.00 1,200.00 2,856.00 1,200.00 32,912.00 32,912.00 1,656.00 1,656.00 409 UNIVERSITY OF SOUTHERN IOWA 13210 S. Logan Dubuque, lowa 52003 | DATE Description Oct. 1 Balance Forward Dec. 19 Invoice #731 CREDIT LIMIT: Credit Debit $100,000 Balance 0.00 18,647.00 18,647.00 CREDIT LIMIT: Debit EASTERN WISCONSIN UNIVERSITY 14123 W. Saginaw Madison, Wisconsin 53702 DATE Description Oct. 1 Balance Forward | Nov. 14 Invoice # 726 Nov. 21 Partial payment # 726 8 Invoice # 729 Dec. 26 Return for Credit- #CM 42 Dec. 26 Partial payment # 729 24,905.00 $75,000 Balance 0.00 24,905.00 19,905.00 41,777.00 38,302.00 28,302.00 5,000.00 Dec. 21,872.00 3,475.00 10,000.00 411 STEVENSON COLLEGE 2689 Industrial Boulevard CREDIT LIMIT: Credit Debit Chicago, Illinois 60614 DATE Description | Oct. 1 Balance Forward Oct. 24 Invoice # 723 Nov. 17 Return for credit - #CM 41 Nov. 17 Payment # 723 Dec. 22 Wrote off a/c. as uncollectible 57,696.00 $75,000 Balance 2,900.00 60,596.00 37,582.00 2,900.00 0.00 23,014.00 34,682.00 2,900.00 Rk