Finding the Fourth Proportional to 6,389.78, 9,589.57 and 3,269.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,389.78 : 9,589.57 = 3,269.52 : x
2. Step 2: Convert to fraction form
   6,389.78/9,589.57 = 3,269.52/x
3. Step 3: Cross multiply
   6,389.78x = 9,589.57 × 3,269.52
4. Step 4: Simplify right side
   6,389.78x = 31,353,282.73
5. Step 5: Solve for x
   x = 31,353,282.73/6,389.78
6. Step 6: Final answer
   x = 4,906.79