Finding the Fourth Proportional to 22,568.32, 31,152.63 and 13,616.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,568.32 : 31,152.63 = 13,616.20 : x
2. Step 2: Convert to fraction form
   22,568.32/31,152.63 = 13,616.20/x
3. Step 3: Cross multiply
   22,568.32x = 31,152.63 × 13,616.20
4. Step 4: Simplify right side
   22,568.32x = 424,180,440.61
5. Step 5: Solve for x
   x = 424,180,440.61/22,568.32
6. Step 6: Final answer
   x = 18,795.39