Finding the Fourth Proportional to 144,142.04, 198,913.92 and 80,480.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,142.04 : 198,913.92 = 80,480.72 : x
2. Step 2: Convert to fraction form
   144,142.04/198,913.92 = 80,480.72/x
3. Step 3: Cross multiply
   144,142.04x = 198,913.92 × 80,480.72
4. Step 4: Simplify right side
   144,142.04x = 16,008,735,499.62
5. Step 5: Solve for x
   x = 16,008,735,499.62/144,142.04
6. Step 6: Final answer
   x = 111,062.22