Finding the Fourth Proportional to 11,453.15, 17,150.55 and 7,545.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,453.15 : 17,150.55 = 7,545.71 : x
2. Step 2: Convert to fraction form
   11,453.15/17,150.55 = 7,545.71/x
3. Step 3: Cross multiply
   11,453.15x = 17,150.55 × 7,545.71
4. Step 4: Simplify right side
   11,453.15x = 129,412,990.89
5. Step 5: Solve for x
   x = 129,412,990.89/11,453.15
6. Step 6: Final answer
   x = 11,299.34