Finding the Fourth Proportional to 12,148.08, 18,227.88 and 7,227.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,148.08 : 18,227.88 = 7,227.42 : x
2. Step 2: Convert to fraction form
   12,148.08/18,227.88 = 7,227.42/x
3. Step 3: Cross multiply
   12,148.08x = 18,227.88 × 7,227.42
4. Step 4: Simplify right side
   12,148.08x = 131,740,544.47
5. Step 5: Solve for x
   x = 131,740,544.47/12,148.08
6. Step 6: Final answer
   x = 10,844.56