Finding the Fourth Proportional to 8,390.42, 12,582.74 and 3,707.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,390.42 : 12,582.74 = 3,707.27 : x
2. Step 2: Convert to fraction form
   8,390.42/12,582.74 = 3,707.27/x
3. Step 3: Cross multiply
   8,390.42x = 12,582.74 × 3,707.27
4. Step 4: Simplify right side
   8,390.42x = 46,647,608.06
5. Step 5: Solve for x
   x = 46,647,608.06/8,390.42
6. Step 6: Final answer
   x = 5,559.63