Finding the Fourth Proportional to 9,571.32, 13,208.28 and 5,379.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,571.32 : 13,208.28 = 5,379.54 : x
2. Step 2: Convert to fraction form
   9,571.32/13,208.28 = 5,379.54/x
3. Step 3: Cross multiply
   9,571.32x = 13,208.28 × 5,379.54
4. Step 4: Simplify right side
   9,571.32x = 71,054,470.59
5. Step 5: Solve for x
   x = 71,054,470.59/9,571.32
6. Step 6: Final answer
   x = 7,423.69