Finding the Fourth Proportional to 12,200.27, 18,281.25 and 7,267.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.27 : 18,281.25 = 7,267.23 : x
2. Step 2: Convert to fraction form
   12,200.27/18,281.25 = 7,267.23/x
3. Step 3: Cross multiply
   12,200.27x = 18,281.25 × 7,267.23
4. Step 4: Simplify right side
   12,200.27x = 132,854,048.44
5. Step 5: Solve for x
   x = 132,854,048.44/12,200.27
6. Step 6: Final answer
   x = 10,889.44