Finding the Fourth Proportional to 33,107.60, 49,661.94 and 8,147.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,107.60 : 49,661.94 = 8,147.72 : x
2. Step 2: Convert to fraction form
   33,107.60/49,661.94 = 8,147.72/x
3. Step 3: Cross multiply
   33,107.60x = 49,661.94 × 8,147.72
4. Step 4: Simplify right side
   33,107.60x = 404,631,581.78
5. Step 5: Solve for x
   x = 404,631,581.78/33,107.60
6. Step 6: Final answer
   x = 12,221.71