Finding the Fourth Proportional to 12,109.82, 18,147.81 and 5,868.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.82 : 18,147.81 = 5,868.18 : x
2. Step 2: Convert to fraction form
   12,109.82/18,147.81 = 5,868.18/x
3. Step 3: Cross multiply
   12,109.82x = 18,147.81 × 5,868.18
4. Step 4: Simplify right side
   12,109.82x = 106,494,586.65
5. Step 5: Solve for x
   x = 106,494,586.65/12,109.82
6. Step 6: Final answer
   x = 8,794.07