Wertheim Company uses a job costing system. Wertheim Company's schedule of cost of goods manufactured showed the following amounts for the month ended August 31. Cost of direct materials used Cost of goods manufactured Cost of direct labor ($28 per hour) Work in process inventory, August 1 Allocated manufacturing overhead costs for August amount to $50,400. What is the amount of work in process inventory (before any adjustment for overallocated or underallocated manufacturing overhead) on August 31? $35,400 $139,400 $42,400 124,400 77,000 15,000 $60,400 $169,800