Finding the Fourth Proportional to 33,147.57, 49,724.60 and 9,780.69

Step by Step Solution

1. Step 1: Write the proportion equation
   33,147.57 : 49,724.60 = 9,780.69 : x
2. Step 2: Convert to fraction form
   33,147.57/49,724.60 = 9,780.69/x
3. Step 3: Cross multiply
   33,147.57x = 49,724.60 × 9,780.69
4. Step 4: Simplify right side
   33,147.57x = 486,340,849.07
5. Step 5: Solve for x
   x = 486,340,849.07/33,147.57
6. Step 6: Final answer
   x = 14,671.99