Finding the Fourth Proportional to 12,667.97, 17,481.75 and 7,078.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.97 : 17,481.75 = 7,078.97 : x
2. Step 2: Convert to fraction form
   12,667.97/17,481.75 = 7,078.97/x
3. Step 3: Cross multiply
   12,667.97x = 17,481.75 × 7,078.97
4. Step 4: Simplify right side
   12,667.97x = 123,752,696.39
5. Step 5: Solve for x
   x = 123,752,696.39/12,667.97
6. Step 6: Final answer
   x = 9,768.95