Additional Information Current ratio (at year end) Total 1labilities 4 Total stockholders' equity Gross margin percentage Inventory turnover (Cost of goods sold * Ending inventory) Gross margin for Year 4 1.4 to \begin{tabular}{r} 1.6 \\ 60 \\ 40 \\ 9.5 \\ 5323,600 \end{tabular} Required a. Compute the balance in trade accounts payable as of December 31, Year 4. b. Compute the balance in retained earnings as of December 31, Year 4. c. Compute the balance in the inventory account as of December 31, Year 4. (Assume that the level last year) Note: For all requirements, negative omounts should be indicated by a minus sign. Do not round your answers to the nearest whole dollar amount