Finding the Fourth Proportional to 12,068.85, 18,105.69 and 4,171.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,068.85 : 18,105.69 = 4,171.65 : x
2. Step 2: Convert to fraction form
   12,068.85/18,105.69 = 4,171.65/x
3. Step 3: Cross multiply
   12,068.85x = 18,105.69 × 4,171.65
4. Step 4: Simplify right side
   12,068.85x = 75,530,601.69
5. Step 5: Solve for x
   x = 75,530,601.69/12,068.85
6. Step 6: Final answer
   x = 6,258.31