Finding the Fourth Proportional to 131,817.35, 181,908.18 and 71,387.82

Step by Step Solution

1. Step 1: Write the proportion equation
   131,817.35 : 181,908.18 = 71,387.82 : x
2. Step 2: Convert to fraction form
   131,817.35/181,908.18 = 71,387.82/x
3. Step 3: Cross multiply
   131,817.35x = 181,908.18 × 71,387.82
4. Step 4: Simplify right side
   131,817.35x = 12,986,028,410.37
5. Step 5: Solve for x
   x = 12,986,028,410.37/131,817.35
6. Step 6: Final answer
   x = 98,515.32