Finding the Fourth Proportional to 86,086.64, 129,139.79 and 22,909.37

Step by Step Solution

1. Step 1: Write the proportion equation
   86,086.64 : 129,139.79 = 22,909.37 : x
2. Step 2: Convert to fraction form
   86,086.64/129,139.79 = 22,909.37/x
3. Step 3: Cross multiply
   86,086.64x = 129,139.79 × 22,909.37
4. Step 4: Simplify right side
   86,086.64x = 2,958,510,470.59
5. Step 5: Solve for x
   x = 2,958,510,470.59/86,086.64
6. Step 6: Final answer
   x = 34,366.66