Rodman Company has the following balances as of December 31, 20X7. Materials inventory $15,000 dr. Work in process inventory $32,200 dr. Finished good inventory $50,100 dr. Manufacturing overhead (after allocation) $3,500 dr. Cost of good sold $74,500 dr. Additional information is as follows: Cost of materials purchased during 20X7 $41,000 Cost of direct materials requisitioned in 20X7 $47,000 Cost of indirect materials requisitioned in 20X7 $8,000 Cost of goods completed in 20X7 $105,000 Manufacturing overhead allocated (120% of direct labor) $51,000 Required: a. January 1, 20X7, materials inventory