4. What is the total amount of the credit column in the post-closing trial balance of Whitney Corp. on December 31, 2020? Whitney Corp. Adjusted Trial Balance December 31, 2020 Account Title Debit Credit 18,400 15,500 21,200 53,000 Cash Accounts Receivable Inventory Machine Accumulated Depreciation Notes Payable Accounts Payable Common Stock Retained Earnings Dividends Sales Revenue Salaries Expense Insurance Expense Utilities Expense Depreciation Expense Total 4,000 29,000 3,900 40,000 17,800 5,600 45,200 17,300 5.000 2,400 1,500 139,900 139,900