Finding the Fourth Proportional to 12,106.65, 18,134.46 and 5,538.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,106.65 : 18,134.46 = 5,538.36 : x
2. Step 2: Convert to fraction form
   12,106.65/18,134.46 = 5,538.36/x
3. Step 3: Cross multiply
   12,106.65x = 18,134.46 × 5,538.36
4. Step 4: Simplify right side
   12,106.65x = 100,435,167.89
5. Step 5: Solve for x
   x = 100,435,167.89/12,106.65
6. Step 6: Final answer
   x = 8,295.87