Finding the Fourth Proportional to 9,395.32, 12,964.78 and 5,413.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,395.32 : 12,964.78 = 5,413.76 : x
2. Step 2: Convert to fraction form
   9,395.32/12,964.78 = 5,413.76/x
3. Step 3: Cross multiply
   9,395.32x = 12,964.78 × 5,413.76
4. Step 4: Simplify right side
   9,395.32x = 70,188,207.37
5. Step 5: Solve for x
   x = 70,188,207.37/9,395.32
6. Step 6: Final answer
   x = 7,470.55