Finding the Fourth Proportional to 8,162.38, 12,238.60 and 3,479.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162.38 : 12,238.60 = 3,479.76 : x
2. Step 2: Convert to fraction form
   8,162.38/12,238.60 = 3,479.76/x
3. Step 3: Cross multiply
   8,162.38x = 12,238.60 × 3,479.76
4. Step 4: Simplify right side
   8,162.38x = 42,587,390.74
5. Step 5: Solve for x
   x = 42,587,390.74/8,162.38
6. Step 6: Final answer
   x = 5,217.52