Finding the Fourth Proportional to 5,183.16, 7,152.78 and 2,825.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,183.16 : 7,152.78 = 2,825.31 : x
2. Step 2: Convert to fraction form
   5,183.16/7,152.78 = 2,825.31/x
3. Step 3: Cross multiply
   5,183.16x = 7,152.78 × 2,825.31
4. Step 4: Simplify right side
   5,183.16x = 20,208,820.86
5. Step 5: Solve for x
   x = 20,208,820.86/5,183.16
6. Step 6: Final answer
   x = 3,898.94