Finding the Fourth Proportional to 22,496.59, 31,044.79 and 12,287.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,496.59 : 31,044.79 = 12,287.28 : x
2. Step 2: Convert to fraction form
   22,496.59/31,044.79 = 12,287.28/x
3. Step 3: Cross multiply
   22,496.59x = 31,044.79 × 12,287.28
4. Step 4: Simplify right side
   22,496.59x = 381,455,996.55
5. Step 5: Solve for x
   x = 381,455,996.55/22,496.59
6. Step 6: Final answer
   x = 16,956.17