Finding the Fourth Proportional to 22,544.38, 31,111.45 and 12,472.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,544.38 : 31,111.45 = 12,472.58 : x
2. Step 2: Convert to fraction form
   22,544.38/31,111.45 = 12,472.58/x
3. Step 3: Cross multiply
   22,544.38x = 31,111.45 × 12,472.58
4. Step 4: Simplify right side
   22,544.38x = 388,040,049.04
5. Step 5: Solve for x
   x = 388,040,049.04/22,544.38
6. Step 6: Final answer
   x = 17,212.27