Finding the Fourth Proportional to 22,766.56, 31,414.76 and 12,693.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,766.56 : 31,414.76 = 12,693.76 : x
2. Step 2: Convert to fraction form
   22,766.56/31,414.76 = 12,693.76/x
3. Step 3: Cross multiply
   22,766.56x = 31,414.76 × 12,693.76
4. Step 4: Simplify right side
   22,766.56x = 398,771,423.90
5. Step 5: Solve for x
   x = 398,771,423.90/22,766.56
6. Step 6: Final answer
   x = 17,515.66