Finding the Fourth Proportional to 9,720.28, 13,413.78 and 5,943.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,720.28 : 13,413.78 = 5,943.49 : x
2. Step 2: Convert to fraction form
   9,720.28/13,413.78 = 5,943.49/x
3. Step 3: Cross multiply
   9,720.28x = 13,413.78 × 5,943.49
4. Step 4: Simplify right side
   9,720.28x = 79,724,667.29
5. Step 5: Solve for x
   x = 79,724,667.29/9,720.28
6. Step 6: Final answer
   x = 8,201.89