Finding the Fourth Proportional to 12,109.91, 18,147.96 and 5,868.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.91 : 18,147.96 = 5,868.27 : x
2. Step 2: Convert to fraction form
   12,109.91/18,147.96 = 5,868.27/x
3. Step 3: Cross multiply
   12,109.91x = 18,147.96 × 5,868.27
4. Step 4: Simplify right side
   12,109.91x = 106,497,101.72
5. Step 5: Solve for x
   x = 106,497,101.72/12,109.91
6. Step 6: Final answer
   x = 8,794.21