Finding the Fourth Proportional to 8,680.86, 13,017.42 and 2,756.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,680.86 : 13,017.42 = 2,756.04 : x
2. Step 2: Convert to fraction form
   8,680.86/13,017.42 = 2,756.04/x
3. Step 3: Cross multiply
   8,680.86x = 13,017.42 × 2,756.04
4. Step 4: Simplify right side
   8,680.86x = 35,876,530.22
5. Step 5: Solve for x
   x = 35,876,530.22/8,680.86
6. Step 6: Final answer
   x = 4,132.83