Finding the Fourth Proportional to 3,117.89, 4,324.75 and 3,005.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,117.89 : 4,324.75 = 3,005.69 : x
2. Step 2: Convert to fraction form
   3,117.89/4,324.75 = 3,005.69/x
3. Step 3: Cross multiply
   3,117.89x = 4,324.75 × 3,005.69
4. Step 4: Simplify right side
   3,117.89x = 12,998,828.69
5. Step 5: Solve for x
   x = 12,998,828.69/3,117.89
6. Step 6: Final answer
   x = 4,169.11