Finding the Fourth Proportional to 25,983.09, 38,978.72 and 8,448.82

Step by Step Solution

1. Step 1: Write the proportion equation
   25,983.09 : 38,978.72 = 8,448.82 : x
2. Step 2: Convert to fraction form
   25,983.09/38,978.72 = 8,448.82/x
3. Step 3: Cross multiply
   25,983.09x = 38,978.72 × 8,448.82
4. Step 4: Simplify right side
   25,983.09x = 329,323,951.97
5. Step 5: Solve for x
   x = 329,323,951.97/25,983.09
6. Step 6: Final answer
   x = 12,674.55