Finding the Fourth Proportional to 5,413.50, 7,425.72 and 5,366.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,413.50 : 7,425.72 = 5,366.70 : x
2. Step 2: Convert to fraction form
   5,413.50/7,425.72 = 5,366.70/x
3. Step 3: Cross multiply
   5,413.50x = 7,425.72 × 5,366.70
4. Step 4: Simplify right side
   5,413.50x = 39,851,611.52
5. Step 5: Solve for x
   x = 39,851,611.52/5,413.50
6. Step 6: Final answer
   x = 7,361.52