Finding the Fourth Proportional to 144,185.27, 198,946.81 and 80,513.27

Step by Step Solution

1. Step 1: Write the proportion equation
   144,185.27 : 198,946.81 = 80,513.27 : x
2. Step 2: Convert to fraction form
   144,185.27/198,946.81 = 80,513.27/x
3. Step 3: Cross multiply
   144,185.27x = 198,946.81 × 80,513.27
4. Step 4: Simplify right side
   144,185.27x = 16,017,858,229.17
5. Step 5: Solve for x
   x = 16,017,858,229.17/144,185.27
6. Step 6: Final answer
   x = 111,092.20