Finding the Fourth Proportional to 9,379.27, 12,944.99 and 5,402.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,379.27 : 12,944.99 = 5,402.69 : x
2. Step 2: Convert to fraction form
   9,379.27/12,944.99 = 5,402.69/x
3. Step 3: Cross multiply
   9,379.27x = 12,944.99 × 5,402.69
4. Step 4: Simplify right side
   9,379.27x = 69,937,708.65
5. Step 5: Solve for x
   x = 69,937,708.65/9,379.27
6. Step 6: Final answer
   x = 7,456.63