Finding the Fourth Proportional to 8,105.32, 12,165.68 and 3,947.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.32 : 12,165.68 = 3,947.59 : x
2. Step 2: Convert to fraction form
   8,105.32/12,165.68 = 3,947.59/x
3. Step 3: Cross multiply
   8,105.32x = 12,165.68 × 3,947.59
4. Step 4: Simplify right side
   8,105.32x = 48,025,116.71
5. Step 5: Solve for x
   x = 48,025,116.71/8,105.32
6. Step 6: Final answer
   x = 5,925.14