Finding the Fourth Proportional to 131,717.42, 181,770.46 and 71,288.06

Step by Step Solution

1. Step 1: Write the proportion equation
   131,717.42 : 181,770.46 = 71,288.06 : x
2. Step 2: Convert to fraction form
   131,717.42/181,770.46 = 71,288.06/x
3. Step 3: Cross multiply
   131,717.42x = 181,770.46 × 71,288.06
4. Step 4: Simplify right side
   131,717.42x = 12,958,063,458.71
5. Step 5: Solve for x
   x = 12,958,063,458.71/131,717.42
6. Step 6: Final answer
   x = 98,377.75