Answer:
The Journal entry is as follows:
On December 31, 20Y2
Unearned rent revenue A/c Dr. $11,025
To Rent Revenue $11,025
(For earning rent revenue for 7 months ended on December 31, 20Y2)
Workings:
Rent revenue for 7 Months:
= Rent received for 12 months × (7 months ÷ 12 Months)
= $18,900 × (7 months ÷ 12 Months)
= $18,900 × 0.583
= $11,025