Finding the Fourth Proportional to 87,597.37, 131,406.59 and 40,839.31

Step by Step Solution

1. Step 1: Write the proportion equation
   87,597.37 : 131,406.59 = 40,839.31 : x
2. Step 2: Convert to fraction form
   87,597.37/131,406.59 = 40,839.31/x
3. Step 3: Cross multiply
   87,597.37x = 131,406.59 × 40,839.31
4. Step 4: Simplify right side
   87,597.37x = 5,366,554,465.05
5. Step 5: Solve for x
   x = 5,366,554,465.05/87,597.37
6. Step 6: Final answer
   x = 61,263.88