Finding the Fourth Proportional to 5,168.42, 7,132.38 and 2,810.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.42 : 7,132.38 = 2,810.54 : x
2. Step 2: Convert to fraction form
   5,168.42/7,132.38 = 2,810.54/x
3. Step 3: Cross multiply
   5,168.42x = 7,132.38 × 2,810.54
4. Step 4: Simplify right side
   5,168.42x = 20,045,839.29
5. Step 5: Solve for x
   x = 20,045,839.29/5,168.42
6. Step 6: Final answer
   x = 3,878.52