Finding the Fourth Proportional to 87,892.23, 131,728.69 and 42,876.48

Step by Step Solution

1. Step 1: Write the proportion equation
   87,892.23 : 131,728.69 = 42,876.48 : x
2. Step 2: Convert to fraction form
   87,892.23/131,728.69 = 42,876.48/x
3. Step 3: Cross multiply
   87,892.23x = 131,728.69 × 42,876.48
4. Step 4: Simplify right side
   87,892.23x = 5,648,062,542.21
5. Step 5: Solve for x
   x = 5,648,062,542.21/87,892.23
6. Step 6: Final answer
   x = 64,261.23