Finding the Fourth Proportional to 131,854.07, 181,959.50 and 71,424.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,854.07 : 181,959.50 = 71,424.72 : x
2. Step 2: Convert to fraction form
   131,854.07/181,959.50 = 71,424.72/x
3. Step 3: Cross multiply
   131,854.07x = 181,959.50 × 71,424.72
4. Step 4: Simplify right side
   131,854.07x = 12,996,406,338.84
5. Step 5: Solve for x
   x = 12,996,406,338.84/131,854.07
6. Step 6: Final answer
   x = 98,566.59