Finding the Fourth Proportional to 86,429, 129,665.38 and 24,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,429 : 129,665.38 = 24,099.50 : x
2. Step 2: Convert to fraction form
   86,429/129,665.38 = 24,099.50/x
3. Step 3: Cross multiply
   86,429x = 129,665.38 × 24,099.50
4. Step 4: Simplify right side
   86,429x = 3,124,870,825.31
5. Step 5: Solve for x
   x = 3,124,870,825.31/86,429
6. Step 6: Final answer
   x = 36,155.35