Finding the Fourth Proportional to 12,105.79, 16,667.36 and 10,330.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,105.79 : 16,667.36 = 10,330.27 : x
2. Step 2: Convert to fraction form
   12,105.79/16,667.36 = 10,330.27/x
3. Step 3: Cross multiply
   12,105.79x = 16,667.36 × 10,330.27
4. Step 4: Simplify right side
   12,105.79x = 172,178,271.48
5. Step 5: Solve for x
   x = 172,178,271.48/12,105.79
6. Step 6: Final answer
   x = 14,222.81