Finding the Fourth Proportional to 22,660.50, 31,273.41 and 12,726.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,660.50 : 31,273.41 = 12,726.42 : x
2. Step 2: Convert to fraction form
   22,660.50/31,273.41 = 12,726.42/x
3. Step 3: Cross multiply
   22,660.50x = 31,273.41 × 12,726.42
4. Step 4: Simplify right side
   22,660.50x = 397,998,550.49
5. Step 5: Solve for x
   x = 397,998,550.49/22,660.50
6. Step 6: Final answer
   x = 17,563.54