Finding the Fourth Proportional to 86,105.84, 129,159.17 and 26,134.83

Step by Step Solution

1. Step 1: Write the proportion equation
   86,105.84 : 129,159.17 = 26,134.83 : x
2. Step 2: Convert to fraction form
   86,105.84/129,159.17 = 26,134.83/x
3. Step 3: Cross multiply
   86,105.84x = 129,159.17 × 26,134.83
4. Step 4: Simplify right side
   86,105.84x = 3,375,553,078.72
5. Step 5: Solve for x
   x = 3,375,553,078.72/86,105.84
6. Step 6: Final answer
   x = 39,202.37