Finding the Fourth Proportional to 23,223.43, 32,061.61 and 15,288.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,223.43 : 32,061.61 = 15,288.72 : x
2. Step 2: Convert to fraction form
   23,223.43/32,061.61 = 15,288.72/x
3. Step 3: Cross multiply
   23,223.43x = 32,061.61 × 15,288.72
4. Step 4: Simplify right side
   23,223.43x = 490,180,876.92
5. Step 5: Solve for x
   x = 490,180,876.92/23,223.43
6. Step 6: Final answer
   x = 21,107.17