Finding the Fourth Proportional to 131,666.54, 181,699.56 and 71,237

Step by Step Solution

1. Step 1: Write the proportion equation
   131,666.54 : 181,699.56 = 71,237 : x
2. Step 2: Convert to fraction form
   131,666.54/181,699.56 = 71,237/x
3. Step 3: Cross multiply
   131,666.54x = 181,699.56 × 71,237
4. Step 4: Simplify right side
   131,666.54x = 12,943,731,555.72
5. Step 5: Solve for x
   x = 12,943,731,555.72/131,666.54
6. Step 6: Final answer
   x = 98,306.92