Finding the Fourth Proportional to 22,636.54, 31,242.17 and 12,568.21

Step by Step Solution

1. Step 1: Write the proportion equation
   22,636.54 : 31,242.17 = 12,568.21 : x
2. Step 2: Convert to fraction form
   22,636.54/31,242.17 = 12,568.21/x
3. Step 3: Cross multiply
   22,636.54x = 31,242.17 × 12,568.21
4. Step 4: Simplify right side
   22,636.54x = 392,658,153.42
5. Step 5: Solve for x
   x = 392,658,153.42/22,636.54
6. Step 6: Final answer
   x = 17,346.21