Finding the Fourth Proportional to 8,255.58, 12,389.01 and 3,325.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,255.58 : 12,389.01 = 3,325.61 : x
2. Step 2: Convert to fraction form
   8,255.58/12,389.01 = 3,325.61/x
3. Step 3: Cross multiply
   8,255.58x = 12,389.01 × 3,325.61
4. Step 4: Simplify right side
   8,255.58x = 41,200,987.74
5. Step 5: Solve for x
   x = 41,200,987.74/8,255.58
6. Step 6: Final answer
   x = 4,990.68