Finding the Fourth Proportional to 5,168.21, 7,132.20 and 2,810.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,168.21 : 7,132.20 = 2,810.35 : x
2. Step 2: Convert to fraction form
   5,168.21/7,132.20 = 2,810.35/x
3. Step 3: Cross multiply
   5,168.21x = 7,132.20 × 2,810.35
4. Step 4: Simplify right side
   5,168.21x = 20,043,978.27
5. Step 5: Solve for x
   x = 20,043,978.27/5,168.21
6. Step 6: Final answer
   x = 3,878.32