Finding the Fourth Proportional to 12,377.72, 17,078.49 and 7,339.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,377.72 : 17,078.49 = 7,339.38 : x
2. Step 2: Convert to fraction form
   12,377.72/17,078.49 = 7,339.38/x
3. Step 3: Cross multiply
   12,377.72x = 17,078.49 × 7,339.38
4. Step 4: Simplify right side
   12,377.72x = 125,345,527.94
5. Step 5: Solve for x
   x = 125,345,527.94/12,377.72
6. Step 6: Final answer
   x = 10,126.71