Finding the Fourth Proportional to 22,568.88, 31,144.60 and 12,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,568.88 : 31,144.60 = 12,496.72 : x
2. Step 2: Convert to fraction form
   22,568.88/31,144.60 = 12,496.72/x
3. Step 3: Cross multiply
   22,568.88x = 31,144.60 × 12,496.72
4. Step 4: Simplify right side
   22,568.88x = 389,205,345.71
5. Step 5: Solve for x
   x = 389,205,345.71/22,568.88
6. Step 6: Final answer
   x = 17,245.22