Finding the Fourth Proportional to 87,553.50, 131,349.42 and 28,395.15

Step by Step Solution

1. Step 1: Write the proportion equation
   87,553.50 : 131,349.42 = 28,395.15 : x
2. Step 2: Convert to fraction form
   87,553.50/131,349.42 = 28,395.15/x
3. Step 3: Cross multiply
   87,553.50x = 131,349.42 × 28,395.15
4. Step 4: Simplify right side
   87,553.50x = 3,729,686,483.31
5. Step 5: Solve for x
   x = 3,729,686,483.31/87,553.50
6. Step 6: Final answer
   x = 42,598.94