Finding the Fourth Proportional to 33,099.24, 49,648.98 and 8,139.48

Step by Step Solution

1. Step 1: Write the proportion equation
   33,099.24 : 49,648.98 = 8,139.48 : x
2. Step 2: Convert to fraction form
   33,099.24/49,648.98 = 8,139.48/x
3. Step 3: Cross multiply
   33,099.24x = 49,648.98 × 8,139.48
4. Step 4: Simplify right side
   33,099.24x = 404,116,879.73
5. Step 5: Solve for x
   x = 404,116,879.73/33,099.24
6. Step 6: Final answer
   x = 12,209.25