Finding the Fourth Proportional to 23,411.28, 32,307.57 and 12,800.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,411.28 : 32,307.57 = 12,800.91 : x
2. Step 2: Convert to fraction form
   23,411.28/32,307.57 = 12,800.91/x
3. Step 3: Cross multiply
   23,411.28x = 32,307.57 × 12,800.91
4. Step 4: Simplify right side
   23,411.28x = 413,566,295.89
5. Step 5: Solve for x
   x = 413,566,295.89/23,411.28
6. Step 6: Final answer
   x = 17,665.26