Finding the Fourth Proportional to 131,767.27, 181,839.15 and 71,338.57

Step by Step Solution

1. Step 1: Write the proportion equation
   131,767.27 : 181,839.15 = 71,338.57 : x
2. Step 2: Convert to fraction form
   131,767.27/181,839.15 = 71,338.57/x
3. Step 3: Cross multiply
   131,767.27x = 181,839.15 × 71,338.57
4. Step 4: Simplify right side
   131,767.27x = 12,972,144,931.02
5. Step 5: Solve for x
   x = 12,972,144,931.02/131,767.27
6. Step 6: Final answer
   x = 98,447.40