Answer: The cost of the new equipment is $50 000.
Explanation: Gains are not recognized in exchanges of similar fixed assets, the cost of the new asset is adjusted to reflect the gain :
Book value = 41000 - 36000 = 5000
Gain or loss = 4000 - 5000 = -1000 Lost.
Cost of the new asset = Price - Unrecognized earnings.
As there are no unrecognized gains, the cost of the new asset is = 50,000.