Finding the Fourth Proportional to 8,256.09, 12,386.20 and 3,868.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,256.09 : 12,386.20 = 3,868.43 : x
2. Step 2: Convert to fraction form
   8,256.09/12,386.20 = 3,868.43/x
3. Step 3: Cross multiply
   8,256.09x = 12,386.20 × 3,868.43
4. Step 4: Simplify right side
   8,256.09x = 47,915,147.67
5. Step 5: Solve for x
   x = 47,915,147.67/8,256.09
6. Step 6: Final answer
   x = 5,803.61