Finding the Fourth Proportional to 22,456.98, 31,001.13 and 13,023.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456.98 : 31,001.13 = 13,023.72 : x
2. Step 2: Convert to fraction form
   22,456.98/31,001.13 = 13,023.72/x
3. Step 3: Cross multiply
   22,456.98x = 31,001.13 × 13,023.72
4. Step 4: Simplify right side
   22,456.98x = 403,750,036.80
5. Step 5: Solve for x
   x = 403,750,036.80/22,456.98
6. Step 6: Final answer
   x = 17,978.82