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 .......... $19,000 Direct labor ........................ 15,000 Actual manufacturing overhead ....... 16,000 Applied manufacturing overhead ...... 14,000 Net income .......................... 20,000 S&A expenses ........................ 30,000 Sales revenue ....................... 90,000 Calculate the work in process inventory balance on December 31.