These are selected 2022 transactions for Pronghorn Corporation:
Jan. 1 Purchased a copyright for $117,000. The copyright has a useful life of 6 years and a remaining legal life of 30 years.
Mar. 1 Purchased a patent with an estimated useful life of 4 years and a legal life of 20 years for $60,000.
Sept. 1 Purchased a small company and recorded goodwill of $147,000. Its useful life is indefinite.
Prepare all adjusting entries at December 31 to record amortization required by the events.