Finding the Fourth Proportional to 8,309.39, 12,456.38 and 4,359.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309.39 : 12,456.38 = 4,359.83 : x
2. Step 2: Convert to fraction form
   8,309.39/12,456.38 = 4,359.83/x
3. Step 3: Cross multiply
   8,309.39x = 12,456.38 × 4,359.83
4. Step 4: Simplify right side
   8,309.39x = 54,307,647.83
5. Step 5: Solve for x
   x = 54,307,647.83/8,309.39
6. Step 6: Final answer
   x = 6,535.70