Finding the Fourth Proportional to 12,383.28, 17,086.55 and 7,076.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,383.28 : 17,086.55 = 7,076.97 : x
2. Step 2: Convert to fraction form
   12,383.28/17,086.55 = 7,076.97/x
3. Step 3: Cross multiply
   12,383.28x = 17,086.55 × 7,076.97
4. Step 4: Simplify right side
   12,383.28x = 120,920,966.37
5. Step 5: Solve for x
   x = 120,920,966.37/12,383.28
6. Step 6: Final answer
   x = 9,764.86