Finding the Fourth Proportional to 87,700.17, 131,551.47 and 28,536.15

Step by Step Solution

1. Step 1: Write the proportion equation
   87,700.17 : 131,551.47 = 28,536.15 : x
2. Step 2: Convert to fraction form
   87,700.17/131,551.47 = 28,536.15/x
3. Step 3: Cross multiply
   87,700.17x = 131,551.47 × 28,536.15
4. Step 4: Simplify right side
   87,700.17x = 3,753,972,480.64
5. Step 5: Solve for x
   x = 3,753,972,480.64/87,700.17
6. Step 6: Final answer
   x = 42,804.62