Finding the Fourth Proportional to 22,677.48, 31,292.56 and 12,604.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,677.48 : 31,292.56 = 12,604.30 : x
2. Step 2: Convert to fraction form
   22,677.48/31,292.56 = 12,604.30/x
3. Step 3: Cross multiply
   22,677.48x = 31,292.56 × 12,604.30
4. Step 4: Simplify right side
   22,677.48x = 394,420,814.01
5. Step 5: Solve for x
   x = 394,420,814.01/22,677.48
6. Step 6: Final answer
   x = 17,392.62