Finding the Fourth Proportional to 9,570.36, 13,206.42 and 5,379.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,570.36 : 13,206.42 = 5,379.24 : x
2. Step 2: Convert to fraction form
   9,570.36/13,206.42 = 5,379.24/x
3. Step 3: Cross multiply
   9,570.36x = 13,206.42 × 5,379.24
4. Step 4: Simplify right side
   9,570.36x = 71,040,502.72
5. Step 5: Solve for x
   x = 71,040,502.72/9,570.36
6. Step 6: Final answer
   x = 7,422.97