Finding the Fourth Proportional to 131,875.72, 181,988.25 and 71,448

Step by Step Solution

1. Step 1: Write the proportion equation
   131,875.72 : 181,988.25 = 71,448 : x
2. Step 2: Convert to fraction form
   131,875.72/181,988.25 = 71,448/x
3. Step 3: Cross multiply
   131,875.72x = 181,988.25 × 71,448
4. Step 4: Simplify right side
   131,875.72x = 13,002,696,218.07
5. Step 5: Solve for x
   x = 13,002,696,218.07/131,875.72
6. Step 6: Final answer
   x = 98,598.11