Finding the Fourth Proportional to 22,635.65, 31,233.89 and 12,564.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,635.65 : 31,233.89 = 12,564.18 : x
2. Step 2: Convert to fraction form
   22,635.65/31,233.89 = 12,564.18/x
3. Step 3: Cross multiply
   22,635.65x = 31,233.89 × 12,564.18
4. Step 4: Simplify right side
   22,635.65x = 392,428,176.80
5. Step 5: Solve for x
   x = 392,428,176.80/22,635.65
6. Step 6: Final answer
   x = 17,336.73