Finding the Fourth Proportional to 11,456.15, 17,155.05 and 7,548.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,456.15 : 17,155.05 = 7,548.71 : x
2. Step 2: Convert to fraction form
   11,456.15/17,155.05 = 7,548.71/x
3. Step 3: Cross multiply
   11,456.15x = 17,155.05 × 7,548.71
4. Step 4: Simplify right side
   11,456.15x = 129,498,411.71
5. Step 5: Solve for x
   x = 129,498,411.71/11,456.15
6. Step 6: Final answer
   x = 11,303.84