Finding the Fourth Proportional to 22,481.28, 31,019.36 and 13,044.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,481.28 : 31,019.36 = 13,044.78 : x
2. Step 2: Convert to fraction form
   22,481.28/31,019.36 = 13,044.78/x
3. Step 3: Cross multiply
   22,481.28x = 31,019.36 × 13,044.78
4. Step 4: Simplify right side
   22,481.28x = 404,640,661.72
5. Step 5: Solve for x
   x = 404,640,661.72/22,481.28
6. Step 6: Final answer
   x = 17,999.00