Finding the Fourth Proportional to 144,088.50, 198,865.17 and 84,472.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,088.50 : 198,865.17 = 84,472.50 : x
2. Step 2: Convert to fraction form
   144,088.50/198,865.17 = 84,472.50/x
3. Step 3: Cross multiply
   144,088.50x = 198,865.17 × 84,472.50
4. Step 4: Simplify right side
   144,088.50x = 16,798,638,072.83
5. Step 5: Solve for x
   x = 16,798,638,072.83/144,088.50
6. Step 6: Final answer
   x = 116,585.56