Finding the Fourth Proportional to 22,540.96, 31,106.72 and 12,604.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,540.96 : 31,106.72 = 12,604.96 : x
2. Step 2: Convert to fraction form
   22,540.96/31,106.72 = 12,604.96/x
3. Step 3: Cross multiply
   22,540.96x = 31,106.72 × 12,604.96
4. Step 4: Simplify right side
   22,540.96x = 392,098,961.33
5. Step 5: Solve for x
   x = 392,098,961.33/22,540.96
6. Step 6: Final answer
   x = 17,394.95