XYZ Company recorded the following information related to their inventory accounts for 2018: January 1, 2018 December 31, 2018 Direct materials 10,000 17,000 Work in process 11,000 ? Finished goods 16,000 9,000 Additional information is as follows: Direct materials purchased .......... $20,000 Direct labor ........................ 15,000 Actual manufacturing overhead ....... 14,000 Applied manufacturing overhead ...... 16,000 Cost of goods manufactured .......... 31,000 Calculate the work in process inventory balance at December 31, 2018.