Finding the Fourth Proportional to 6,085.74, 8,402.43 and 3,993.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,085.74 : 8,402.43 = 3,993.42 : x
2. Step 2: Convert to fraction form
   6,085.74/8,402.43 = 3,993.42/x
3. Step 3: Cross multiply
   6,085.74x = 8,402.43 × 3,993.42
4. Step 4: Simplify right side
   6,085.74x = 33,554,432.01
5. Step 5: Solve for x
   x = 33,554,432.01/6,085.74
6. Step 6: Final answer
   x = 5,513.62