Finding the Fourth Proportional to 8,413.56, 11,608.38 and 5,429.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,413.56 : 11,608.38 = 5,429.52 : x
2. Step 2: Convert to fraction form
   8,413.56/11,608.38 = 5,429.52/x
3. Step 3: Cross multiply
   8,413.56x = 11,608.38 × 5,429.52
4. Step 4: Simplify right side
   8,413.56x = 63,027,931.38
5. Step 5: Solve for x
   x = 63,027,931.38/8,413.56
6. Step 6: Final answer
   x = 7,491.23