Finding the Fourth Proportional to 3,805.29, 5,682.22 and 3,113.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,805.29 : 5,682.22 = 3,113.31 : x
2. Step 2: Convert to fraction form
   3,805.29/5,682.22 = 3,113.31/x
3. Step 3: Cross multiply
   3,805.29x = 5,682.22 × 3,113.31
4. Step 4: Simplify right side
   3,805.29x = 17,690,504.56
5. Step 5: Solve for x
   x = 17,690,504.56/3,805.29
6. Step 6: Final answer
   x = 4,648.92