Finding the Fourth Proportional to 6,661.69, 9,993.83 and 2,766.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,661.69 : 9,993.83 = 2,766.10 : x
2. Step 2: Convert to fraction form
   6,661.69/9,993.83 = 2,766.10/x
3. Step 3: Cross multiply
   6,661.69x = 9,993.83 × 2,766.10
4. Step 4: Simplify right side
   6,661.69x = 27,643,928.65
5. Step 5: Solve for x
   x = 27,643,928.65/6,661.69
6. Step 6: Final answer
   x = 4,149.69