Finding the Fourth Proportional to 14,118.52, 21,183.72 and 7,105

Step by Step Solution

1. Step 1: Write the proportion equation
   14,118.52 : 21,183.72 = 7,105 : x
2. Step 2: Convert to fraction form
   14,118.52/21,183.72 = 7,105/x
3. Step 3: Cross multiply
   14,118.52x = 21,183.72 × 7,105
4. Step 4: Simplify right side
   14,118.52x = 150,510,330.60
5. Step 5: Solve for x
   x = 150,510,330.60/14,118.52
6. Step 6: Final answer
   x = 10,660.49