Finding the Fourth Proportional to 13,344, 18,414.72 and 7,456

Step by Step Solution

1. Step 1: Write the proportion equation
   13,344 : 18,414.72 = 7,456 : x
2. Step 2: Convert to fraction form
   13,344/18,414.72 = 7,456/x
3. Step 3: Cross multiply
   13,344x = 18,414.72 × 7,456
4. Step 4: Simplify right side
   13,344x = 137,300,152.32
5. Step 5: Solve for x
   x = 137,300,152.32/13,344
6. Step 6: Final answer
   x = 10,289.28