Finding the Fourth Proportional to 7,545.91, 10,413.15 and 4,188.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,545.91 : 10,413.15 = 4,188.71 : x
2. Step 2: Convert to fraction form
   7,545.91/10,413.15 = 4,188.71/x
3. Step 3: Cross multiply
   7,545.91x = 10,413.15 × 4,188.71
4. Step 4: Simplify right side
   7,545.91x = 43,617,665.54
5. Step 5: Solve for x
   x = 43,617,665.54/7,545.91
6. Step 6: Final answer
   x = 5,780.31