Finding the Fourth Proportional to 9,379.28, 12,944.17 and 5,401.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,379.28 : 12,944.17 = 5,401.68 : x
2. Step 2: Convert to fraction form
   9,379.28/12,944.17 = 5,401.68/x
3. Step 3: Cross multiply
   9,379.28x = 12,944.17 × 5,401.68
4. Step 4: Simplify right side
   9,379.28x = 69,920,264.21
5. Step 5: Solve for x
   x = 69,920,264.21/9,379.28
6. Step 6: Final answer
   x = 7,454.76