Finding the Fourth Proportional to 131,784.98, 181,863.59 and 71,356.32

Step by Step Solution

1. Step 1: Write the proportion equation
   131,784.98 : 181,863.59 = 71,356.32 : x
2. Step 2: Convert to fraction form
   131,784.98/181,863.59 = 71,356.32/x
3. Step 3: Cross multiply
   131,784.98x = 181,863.59 × 71,356.32
4. Step 4: Simplify right side
   131,784.98x = 12,977,116,167.61
5. Step 5: Solve for x
   x = 12,977,116,167.61/131,784.98
6. Step 6: Final answer
   x = 98,471.89