Equipment acquired on January 8 at a cost of $113,180 has an estimated useful life of 13 years, has an estimated residual value of $7,750, and is depreciated by straight-line method. a. What was the book value of the equipment at December 31 the end of the fourth year? $ b. Assuming that the equipment was sold on April 1 of the fifth year for $72,042. 1. Journalize the entry to record depreciation for the 3 months until the sale date. If an amount box does not require an entry, leave it blank. Round your answers to the nearest whole dollar if required