Finding the Fourth Proportional to 131,647.82, 181,674.43 and 71,218.71

Step by Step Solution

1. Step 1: Write the proportion equation
   131,647.82 : 181,674.43 = 71,218.71 : x
2. Step 2: Convert to fraction form
   131,647.82/181,674.43 = 71,218.71/x
3. Step 3: Cross multiply
   131,647.82x = 181,674.43 × 71,218.71
4. Step 4: Simplify right side
   131,647.82x = 12,938,618,366.54
5. Step 5: Solve for x
   x = 12,938,618,366.54/131,647.82
6. Step 6: Final answer
   x = 98,282.06