Finding the Fourth Proportional to 131,875.27, 181,987.61 and 71,447.40

Step by Step Solution

1. Step 1: Write the proportion equation
   131,875.27 : 181,987.61 = 71,447.40 : x
2. Step 2: Convert to fraction form
   131,875.27/181,987.61 = 71,447.40/x
3. Step 3: Cross multiply
   131,875.27x = 181,987.61 × 71,447.40
4. Step 4: Simplify right side
   131,875.27x = 13,002,541,209.48
5. Step 5: Solve for x
   x = 13,002,541,209.48/131,875.27
6. Step 6: Final answer
   x = 98,597.27