Finding the Fourth Proportional to 9,786.65, 14,680.76 and 2,766.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.65 : 14,680.76 = 2,766.72 : x
2. Step 2: Convert to fraction form
   9,786.65/14,680.76 = 2,766.72/x
3. Step 3: Cross multiply
   9,786.65x = 14,680.76 × 2,766.72
4. Step 4: Simplify right side
   9,786.65x = 40,617,538.47
5. Step 5: Solve for x
   x = 40,617,538.47/9,786.65
6. Step 6: Final answer
   x = 4,150.30