Finding the Fourth Proportional to 5,413.32, 7,470.72 and 3,290.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,413.32 : 7,470.72 = 3,290.34 : x
2. Step 2: Convert to fraction form
   5,413.32/7,470.72 = 3,290.34/x
3. Step 3: Cross multiply
   5,413.32x = 7,470.72 × 3,290.34
4. Step 4: Simplify right side
   5,413.32x = 24,581,208.84
5. Step 5: Solve for x
   x = 24,581,208.84/5,413.32
6. Step 6: Final answer
   x = 4,540.87