Finding the Fourth Proportional to 5,168.12, 7,131.69 and 2,810.24

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.12 : 7,131.69 = 2,810.24 : x
2. Step 2: Convert to fraction form
   5,168.12/7,131.69 = 2,810.24/x
3. Step 3: Cross multiply
   5,168.12x = 7,131.69 × 2,810.24
4. Step 4: Simplify right side
   5,168.12x = 20,041,724.85
5. Step 5: Solve for x
   x = 20,041,724.85/5,168.12
6. Step 6: Final answer
   x = 3,877.96