Finding the Fourth Proportional to 23,426.92, 32,340.90 and 18,109.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,426.92 : 32,340.90 = 18,109.72 : x
2. Step 2: Convert to fraction form
   23,426.92/32,340.90 = 18,109.72/x
3. Step 3: Cross multiply
   23,426.92x = 32,340.90 × 18,109.72
4. Step 4: Simplify right side
   23,426.92x = 585,684,643.55
5. Step 5: Solve for x
   x = 585,684,643.55/23,426.92
6. Step 6: Final answer
   x = 25,000.50