Finding the Fourth Proportional to 5,167.98, 7,131.54 and 2,810.11

Step by Step Solution

1. Step 1: Write the proportion equation
   5,167.98 : 7,131.54 = 2,810.11 : x
2. Step 2: Convert to fraction form
   5,167.98/7,131.54 = 2,810.11/x
3. Step 3: Cross multiply
   5,167.98x = 7,131.54 × 2,810.11
4. Step 4: Simplify right side
   5,167.98x = 20,040,411.87
5. Step 5: Solve for x
   x = 20,040,411.87/5,167.98
6. Step 6: Final answer
   x = 3,877.80