Finding the Fourth Proportional to 8,290.27, 12,433.35 and 5,168.67

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.27 : 12,433.35 = 5,168.67 : x
2. Step 2: Convert to fraction form
   8,290.27/12,433.35 = 5,168.67/x
3. Step 3: Cross multiply
   8,290.27x = 12,433.35 × 5,168.67
4. Step 4: Simplify right side
   8,290.27x = 64,263,851.92
5. Step 5: Solve for x
   x = 64,263,851.92/8,290.27
6. Step 6: Final answer
   x = 7,751.72