Finding the Fourth Proportional to 5,615.34, 8,413.38 and 3,969.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,615.34 : 8,413.38 = 3,969.18 : x
2. Step 2: Convert to fraction form
   5,615.34/8,413.38 = 3,969.18/x
3. Step 3: Cross multiply
   5,615.34x = 8,413.38 × 3,969.18
4. Step 4: Simplify right side
   5,615.34x = 33,394,219.63
5. Step 5: Solve for x
   x = 33,394,219.63/5,615.34
6. Step 6: Final answer
   x = 5,946.96