Answer:
Under double-declining-balance, the fourth full year of depreciation expense is 4320
Explanation:
Schedule of depreciation expense, accumulated depreciation, and book value per year for the equipment under double-declining-balance methods is attached.
Depreciation expense formula is
DE=Carrying Value of the year before x Depreciation rate x 2
Double-declining-balance
Depreciation rate 20,00%
Year depreciation expense
0
1 20000
2 12000
3 7200
4 4320
5 2592