Finding the Fourth Proportional to 87,757.31, 131,610.84 and 28,598.15

Step by Step Solution

1. Step 1: Write the proportion equation
   87,757.31 : 131,610.84 = 28,598.15 : x
2. Step 2: Convert to fraction form
   87,757.31/131,610.84 = 28,598.15/x
3. Step 3: Cross multiply
   87,757.31x = 131,610.84 × 28,598.15
4. Step 4: Simplify right side
   87,757.31x = 3,763,825,885.89
5. Step 5: Solve for x
   x = 3,763,825,885.89/87,757.31
6. Step 6: Final answer
   x = 42,889.03