Finding the Fourth Proportional to 5,596.78, 7,723.31 and 3,078.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,596.78 : 7,723.31 = 3,078.73 : x
2. Step 2: Convert to fraction form
   5,596.78/7,723.31 = 3,078.73/x
3. Step 3: Cross multiply
   5,596.78x = 7,723.31 × 3,078.73
4. Step 4: Simplify right side
   5,596.78x = 23,778,014.27
5. Step 5: Solve for x
   x = 23,778,014.27/5,596.78
6. Step 6: Final answer
   x = 4,248.52