Finding the Fourth Proportional to 8,939.38, 13,462.59 and 8,141.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,939.38 : 13,462.59 = 8,141.32 : x
2. Step 2: Convert to fraction form
   8,939.38/13,462.59 = 8,141.32/x
3. Step 3: Cross multiply
   8,939.38x = 13,462.59 × 8,141.32
4. Step 4: Simplify right side
   8,939.38x = 109,603,227.02
5. Step 5: Solve for x
   x = 109,603,227.02/8,939.38
6. Step 6: Final answer
   x = 12,260.73