Finding the Fourth Proportional to 22,799.13, 31,462.59 and 12,726.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,799.13 : 31,462.59 = 12,726.91 : x
2. Step 2: Convert to fraction form
   22,799.13/31,462.59 = 12,726.91/x
3. Step 3: Cross multiply
   22,799.13x = 31,462.59 × 12,726.91
4. Step 4: Simplify right side
   22,799.13x = 400,421,551.30
5. Step 5: Solve for x
   x = 400,421,551.30/22,799.13
6. Step 6: Final answer
   x = 17,563.02