Finding the Fourth Proportional to 5,168.05, 7,131.82 and 2,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.05 : 7,131.82 = 2,810.25 : x
2. Step 2: Convert to fraction form
   5,168.05/7,131.82 = 2,810.25/x
3. Step 3: Cross multiply
   5,168.05x = 7,131.82 × 2,810.25
4. Step 4: Simplify right side
   5,168.05x = 20,042,197.16
5. Step 5: Solve for x
   x = 20,042,197.16/5,168.05
6. Step 6: Final answer
   x = 3,878.10