Finding the Fourth Proportional to 87,789.02, 121,147.93 and 47,501.89

Step by Step Solution

1. Step 1: Write the proportion equation
   87,789.02 : 121,147.93 = 47,501.89 : x
2. Step 2: Convert to fraction form
   87,789.02/121,147.93 = 47,501.89/x
3. Step 3: Cross multiply
   87,789.02x = 121,147.93 × 47,501.89
4. Step 4: Simplify right side
   87,789.02x = 5,754,755,401.10
5. Step 5: Solve for x
   x = 5,754,755,401.10/87,789.02
6. Step 6: Final answer
   x = 65,552.11