Finding the Fourth Proportional to 13,223.42, 18,249.50 and 7,256.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,223.42 : 18,249.50 = 7,256.25 : x
2. Step 2: Convert to fraction form
   13,223.42/18,249.50 = 7,256.25/x
3. Step 3: Cross multiply
   13,223.42x = 18,249.50 × 7,256.25
4. Step 4: Simplify right side
   13,223.42x = 132,422,934.38
5. Step 5: Solve for x
   x = 132,422,934.38/13,223.42
6. Step 6: Final answer
   x = 10,014.27