Finding the Fourth Proportional to 11,456.52, 17,185.13 and 5,451.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,456.52 : 17,185.13 = 5,451.28 : x
2. Step 2: Convert to fraction form
   11,456.52/17,185.13 = 5,451.28/x
3. Step 3: Cross multiply
   11,456.52x = 17,185.13 × 5,451.28
4. Step 4: Simplify right side
   11,456.52x = 93,680,955.47
5. Step 5: Solve for x
   x = 93,680,955.47/11,456.52
6. Step 6: Final answer
   x = 8,177.09