Finding the Fourth Proportional to 9,570.54, 13,208.07 and 5,379.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,570.54 : 13,208.07 = 5,379.42 : x
2. Step 2: Convert to fraction form
   9,570.54/13,208.07 = 5,379.42/x
3. Step 3: Cross multiply
   9,570.54x = 13,208.07 × 5,379.42
4. Step 4: Simplify right side
   9,570.54x = 71,051,755.92
5. Step 5: Solve for x
   x = 71,051,755.92/9,570.54
6. Step 6: Final answer
   x = 7,424.01