Finding the Fourth Proportional to 22,559.93, 31,132.32 and 12,488.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,559.93 : 31,132.32 = 12,488.15 : x
2. Step 2: Convert to fraction form
   22,559.93/31,132.32 = 12,488.15/x
3. Step 3: Cross multiply
   22,559.93x = 31,132.32 × 12,488.15
4. Step 4: Simplify right side
   22,559.93x = 388,784,863.91
5. Step 5: Solve for x
   x = 388,784,863.91/22,559.93
6. Step 6: Final answer
   x = 17,233.43