Finding the Fourth Proportional to 8,259.57, 12,385.94 and 3,327.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,259.57 : 12,385.94 = 3,327.89 : x
2. Step 2: Convert to fraction form
   8,259.57/12,385.94 = 3,327.89/x
3. Step 3: Cross multiply
   8,259.57x = 12,385.94 × 3,327.89
4. Step 4: Simplify right side
   8,259.57x = 41,218,976.66
5. Step 5: Solve for x
   x = 41,218,976.66/8,259.57
6. Step 6: Final answer
   x = 4,990.45