Finding the Fourth Proportional to 22,689.28, 31,326.72 and 17,374.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,689.28 : 31,326.72 = 17,374.72 : x
2. Step 2: Convert to fraction form
   22,689.28/31,326.72 = 17,374.72/x
3. Step 3: Cross multiply
   22,689.28x = 31,326.72 × 17,374.72
4. Step 4: Simplify right side
   22,689.28x = 544,292,988.52
5. Step 5: Solve for x
   x = 544,292,988.52/22,689.28
6. Step 6: Final answer
   x = 23,988.99