Finding the Fourth Proportional to 10,889.83, 15,022.42 and 6,413.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,889.83 : 15,022.42 = 6,413.37 : x
2. Step 2: Convert to fraction form
   10,889.83/15,022.42 = 6,413.37/x
3. Step 3: Cross multiply
   10,889.83x = 15,022.42 × 6,413.37
4. Step 4: Simplify right side
   10,889.83x = 96,344,337.76
5. Step 5: Solve for x
   x = 96,344,337.76/10,889.83
6. Step 6: Final answer
   x = 8,847.18