Finding the Fourth Proportional to 11,345.24, 17,017.76 and 3,949.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,345.24 : 17,017.76 = 3,949.68 : x
2. Step 2: Convert to fraction form
   11,345.24/17,017.76 = 3,949.68/x
3. Step 3: Cross multiply
   11,345.24x = 17,017.76 × 3,949.68
4. Step 4: Simplify right side
   11,345.24x = 67,214,706.32
5. Step 5: Solve for x
   x = 67,214,706.32/11,345.24
6. Step 6: Final answer
   x = 5,924.49