Finding the Fourth Proportional to 10,810.32, 16,217.16 and 3,413.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,810.32 : 16,217.16 = 3,413.40 : x
2. Step 2: Convert to fraction form
   10,810.32/16,217.16 = 3,413.40/x
3. Step 3: Cross multiply
   10,810.32x = 16,217.16 × 3,413.40
4. Step 4: Simplify right side
   10,810.32x = 55,355,653.94
5. Step 5: Solve for x
   x = 55,355,653.94/10,810.32
6. Step 6: Final answer
   x = 5,120.63