Finding the Fourth Proportional to 22,540.64, 31,105.15 and 12,331.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,540.64 : 31,105.15 = 12,331.49 : x
2. Step 2: Convert to fraction form
   22,540.64/31,105.15 = 12,331.49/x
3. Step 3: Cross multiply
   22,540.64x = 31,105.15 × 12,331.49
4. Step 4: Simplify right side
   22,540.64x = 383,572,659.82
5. Step 5: Solve for x
   x = 383,572,659.82/22,540.64
6. Step 6: Final answer
   x = 17,016.94