Finding the Fourth Proportional to 8,908.50, 12,293.76 and 5,371.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,908.50 : 12,293.76 = 5,371.86 : x
2. Step 2: Convert to fraction form
   8,908.50/12,293.76 = 5,371.86/x
3. Step 3: Cross multiply
   8,908.50x = 12,293.76 × 5,371.86
4. Step 4: Simplify right side
   8,908.50x = 66,040,357.59
5. Step 5: Solve for x
   x = 66,040,357.59/8,908.50
6. Step 6: Final answer
   x = 7,413.18