Finding the Fourth Proportional to 22,798.42, 31,461.60 and 12,726.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,798.42 : 31,461.60 = 12,726.61 : x
2. Step 2: Convert to fraction form
   22,798.42/31,461.60 = 12,726.61/x
3. Step 3: Cross multiply
   22,798.42x = 31,461.60 × 12,726.61
4. Step 4: Simplify right side
   22,798.42x = 400,399,513.18
5. Step 5: Solve for x
   x = 400,399,513.18/22,798.42
6. Step 6: Final answer
   x = 17,562.60