Finding the Fourth Proportional to 5,168.13, 7,131.98 and 2,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.13 : 7,131.98 = 2,810.25 : x
2. Step 2: Convert to fraction form
   5,168.13/7,131.98 = 2,810.25/x
3. Step 3: Cross multiply
   5,168.13x = 7,131.98 × 2,810.25
4. Step 4: Simplify right side
   5,168.13x = 20,042,646.80
5. Step 5: Solve for x
   x = 20,042,646.80/5,168.13
6. Step 6: Final answer
   x = 3,878.12