Please help with #4.

(a) Compute the total cost of each job in process and prove that the sum of their costs equals the Work in Process Inventory account balance. (b) Compute the total cost of each job finished but not sold, and prove that the sum of their costs equals the Finished Goods Inventory balance. (c) Compute the total cost of each job sold, and prove that the sum of their costs equals the Cost of Goods Sold balance. (a) Compute the total cost of each job in process and prove that the sum of their costs equals the Work in Process Inventory account balance. (b) Compute the total cost of each job finished but not sold, and prove that the sum of their costs equals the Finished Goods Inventory balance. (c) Compute the total cost of each job sold, and prove that the sum of their costs equals the Cost of Goods Sold balance