Finding the Fourth Proportional to 9,390.87, 12,962.03 and 5,413.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,390.87 : 12,962.03 = 5,413.57 : x
2. Step 2: Convert to fraction form
   9,390.87/12,962.03 = 5,413.57/x
3. Step 3: Cross multiply
   9,390.87x = 12,962.03 × 5,413.57
4. Step 4: Simplify right side
   9,390.87x = 70,170,797.27
5. Step 5: Solve for x
   x = 70,170,797.27/9,390.87
6. Step 6: Final answer
   x = 7,472.24