Finding the Fourth Proportional to 22,540.28, 31,105.31 and 12,467.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,540.28 : 31,105.31 = 12,467.94 : x
2. Step 2: Convert to fraction form
   22,540.28/31,105.31 = 12,467.94/x
3. Step 3: Cross multiply
   22,540.28x = 31,105.31 × 12,467.94
4. Step 4: Simplify right side
   22,540.28x = 387,819,138.76
5. Step 5: Solve for x
   x = 387,819,138.76/22,540.28
6. Step 6: Final answer
   x = 17,205.60