Finding the Fourth Proportional to 22,967.55, 31,693.28 and 12,895.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,967.55 : 31,693.28 = 12,895.20 : x
2. Step 2: Convert to fraction form
   22,967.55/31,693.28 = 12,895.20/x
3. Step 3: Cross multiply
   22,967.55x = 31,693.28 × 12,895.20
4. Step 4: Simplify right side
   22,967.55x = 408,691,119.78
5. Step 5: Solve for x
   x = 408,691,119.78/22,967.55
6. Step 6: Final answer
   x = 17,794.28