Finding the Fourth Proportional to 8,275.50, 12,413.86 and 3,081.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,275.50 : 12,413.86 = 3,081.38 : x
2. Step 2: Convert to fraction form
   8,275.50/12,413.86 = 3,081.38/x
3. Step 3: Cross multiply
   8,275.50x = 12,413.86 × 3,081.38
4. Step 4: Simplify right side
   8,275.50x = 38,251,750.15
5. Step 5: Solve for x
   x = 38,251,750.15/8,275.50
6. Step 6: Final answer
   x = 4,622.29