Finding the Fourth Proportional to 5,827.78, 8,045.31 and 3,949.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,827.78 : 8,045.31 = 3,949.29 : x
2. Step 2: Convert to fraction form
   5,827.78/8,045.31 = 3,949.29/x
3. Step 3: Cross multiply
   5,827.78x = 8,045.31 × 3,949.29
4. Step 4: Simplify right side
   5,827.78x = 31,773,262.33
5. Step 5: Solve for x
   x = 31,773,262.33/5,827.78
6. Step 6: Final answer
   x = 5,452.04