Finding the Fourth Proportional to 11,169.50, 15,414.71 and 6,456.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,169.50 : 15,414.71 = 6,456.51 : x
2. Step 2: Convert to fraction form
   11,169.50/15,414.71 = 6,456.51/x
3. Step 3: Cross multiply
   11,169.50x = 15,414.71 × 6,456.51
4. Step 4: Simplify right side
   11,169.50x = 99,525,196.98
5. Step 5: Solve for x
   x = 99,525,196.98/11,169.50
6. Step 6: Final answer
   x = 8,910.45