Finding the Fourth Proportional to 8,769.26, 12,105.05 and 5,413.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,769.26 : 12,105.05 = 5,413.43 : x
2. Step 2: Convert to fraction form
   8,769.26/12,105.05 = 5,413.43/x
3. Step 3: Cross multiply
   8,769.26x = 12,105.05 × 5,413.43
4. Step 4: Simplify right side
   8,769.26x = 65,529,844.02
5. Step 5: Solve for x
   x = 65,529,844.02/8,769.26
6. Step 6: Final answer
   x = 7,472.67