Finding the Fourth Proportional to 5,168.80, 7,132.98 and 2,810.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.80 : 7,132.98 = 2,810.89 : x
2. Step 2: Convert to fraction form
   5,168.80/7,132.98 = 2,810.89/x
3. Step 3: Cross multiply
   5,168.80x = 7,132.98 × 2,810.89
4. Step 4: Simplify right side
   5,168.80x = 20,050,022.15
5. Step 5: Solve for x
   x = 20,050,022.15/5,168.80
6. Step 6: Final answer
   x = 3,879.05