Finding the Fourth Proportional to 22,681.54, 31,293.30 and 13,726.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,681.54 : 31,293.30 = 13,726.18 : x
2. Step 2: Convert to fraction form
   22,681.54/31,293.30 = 13,726.18/x
3. Step 3: Cross multiply
   22,681.54x = 31,293.30 × 13,726.18
4. Step 4: Simplify right side
   22,681.54x = 429,537,468.59
5. Step 5: Solve for x
   x = 429,537,468.59/22,681.54
6. Step 6: Final answer
   x = 18,937.76