Finding the Fourth Proportional to 8,339.94, 12,505.29 and 3,413.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,339.94 : 12,505.29 = 3,413.04 : x
2. Step 2: Convert to fraction form
   8,339.94/12,505.29 = 3,413.04/x
3. Step 3: Cross multiply
   8,339.94x = 12,505.29 × 3,413.04
4. Step 4: Simplify right side
   8,339.94x = 42,681,054.98
5. Step 5: Solve for x
   x = 42,681,054.98/8,339.94
6. Step 6: Final answer
   x = 5,117.67