Finding the Fourth Proportional to 8,184.32, 12,266.24 and 4,286.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,184.32 : 12,266.24 = 4,286.72 : x
2. Step 2: Convert to fraction form
   8,184.32/12,266.24 = 4,286.72/x
3. Step 3: Cross multiply
   8,184.32x = 12,266.24 × 4,286.72
4. Step 4: Simplify right side
   8,184.32x = 52,581,936.33
5. Step 5: Solve for x
   x = 52,581,936.33/8,184.32
6. Step 6: Final answer
   x = 6,424.72