Finding the Fourth Proportional to 12,144.28, 16,754.16 and 7,667.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,144.28 : 16,754.16 = 7,667.95 : x
2. Step 2: Convert to fraction form
   12,144.28/16,754.16 = 7,667.95/x
3. Step 3: Cross multiply
   12,144.28x = 16,754.16 × 7,667.95
4. Step 4: Simplify right side
   12,144.28x = 128,470,061.17
5. Step 5: Solve for x
   x = 128,470,061.17/12,144.28
6. Step 6: Final answer
   x = 10,578.65