Finding the Fourth Proportional to 12,105.91, 16,667.53 and 10,330.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,105.91 : 16,667.53 = 10,330.39 : x
2. Step 2: Convert to fraction form
   12,105.91/16,667.53 = 10,330.39/x
3. Step 3: Cross multiply
   12,105.91x = 16,667.53 × 10,330.39
4. Step 4: Simplify right side
   12,105.91x = 172,182,085.24
5. Step 5: Solve for x
   x = 172,182,085.24/12,105.91
6. Step 6: Final answer
   x = 14,222.98