Finding the Fourth Proportional to 65,151.43, 89,862.62 and 59,791.17

Step by Step Solution

1. Step 1: Write the proportion equation
   65,151.43 : 89,862.62 = 59,791.17 : x
2. Step 2: Convert to fraction form
   65,151.43/89,862.62 = 59,791.17/x
3. Step 3: Cross multiply
   65,151.43x = 89,862.62 × 59,791.17
4. Step 4: Simplify right side
   65,151.43x = 5,372,991,289.85
5. Step 5: Solve for x
   x = 5,372,991,289.85/65,151.43
6. Step 6: Final answer
   x = 82,469.28