Finding the Fourth Proportional to 11,411.52, 17,105.64 and 5,479.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,411.52 : 17,105.64 = 5,479.68 : x
2. Step 2: Convert to fraction form
   11,411.52/17,105.64 = 5,479.68/x
3. Step 3: Cross multiply
   11,411.52x = 17,105.64 × 5,479.68
4. Step 4: Simplify right side
   11,411.52x = 93,733,433.40
5. Step 5: Solve for x
   x = 93,733,433.40/11,411.52
6. Step 6: Final answer
   x = 8,213.93