Finding the Fourth Proportional to 8,256.64, 12,387.69 and 3,323.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,256.64 : 12,387.69 = 3,323.74 : x
2. Step 2: Convert to fraction form
   8,256.64/12,387.69 = 3,323.74/x
3. Step 3: Cross multiply
   8,256.64x = 12,387.69 × 3,323.74
4. Step 4: Simplify right side
   8,256.64x = 41,173,429.79
5. Step 5: Solve for x
   x = 41,173,429.79/8,256.64
6. Step 6: Final answer
   x = 4,986.71