The solution would be like this for this specific problem:
Given:
ending work = 17,000
ending work (labor and overhead) = 60%
Completion: Inventory completion (materials) = 100%; Inventory completion (labor and overhead) = 60%
Materials cost per equivalent unit = $4.10
Materials cost per equivalent unit = $2.10
First, we get the ending work of the labor and overhead:
17,000 * .6 = 10,200
Now that we have the equivalent units of production for the labor and overhead, we now compute for the cost of ending work for both materials and labor and overhead.
Materials = 17,000 * $4.10
= 69,700
Labor and Overhead = 10,200 * $2.10
= 21,420
Adding both the Materials and Labor and Overhead costs:
$69,700 + $21,420 = $91,120.
Therefore, the balance of the ending work in process inventory account would be
$91,120.