Finding the Fourth Proportional to 9,393.47, 12,964.51 and 5,413.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,393.47 : 12,964.51 = 5,413.89 : x
2. Step 2: Convert to fraction form
   9,393.47/12,964.51 = 5,413.89/x
3. Step 3: Cross multiply
   9,393.47x = 12,964.51 × 5,413.89
4. Step 4: Simplify right side
   9,393.47x = 70,188,383.05
5. Step 5: Solve for x
   x = 70,188,383.05/9,393.47
6. Step 6: Final answer
   x = 7,472.04