Finding the Fourth Proportional to 5,167.92, 7,131.72 and 2,810.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,167.92 : 7,131.72 = 2,810.04 : x
2. Step 2: Convert to fraction form
   5,167.92/7,131.72 = 2,810.04/x
3. Step 3: Cross multiply
   5,167.92x = 7,131.72 × 2,810.04
4. Step 4: Simplify right side
   5,167.92x = 20,040,418.47
5. Step 5: Solve for x
   x = 20,040,418.47/5,167.92
6. Step 6: Final answer
   x = 3,877.85