Finding the Fourth Proportional to 12,149.44, 18,227.24 and 5,131.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,149.44 : 18,227.24 = 5,131.22 : x
2. Step 2: Convert to fraction form
   12,149.44/18,227.24 = 5,131.22/x
3. Step 3: Cross multiply
   12,149.44x = 18,227.24 × 5,131.22
4. Step 4: Simplify right side
   12,149.44x = 93,527,978.43
5. Step 5: Solve for x
   x = 93,527,978.43/12,149.44
6. Step 6: Final answer
   x = 7,698.13