Finding the Fourth Proportional to 42.48, 63.69 and 15.41

Step by Step Solution

1. Step 1: Write the proportion equation
   42.48 : 63.69 = 15.41 : x
2. Step 2: Convert to fraction form
   42.48/63.69 = 15.41/x
3. Step 3: Cross multiply
   42.48x = 63.69 × 15.41
4. Step 4: Simplify right side
   42.48x = 981.56
5. Step 5: Solve for x
   x = 981.56/42.48
6. Step 6: Final answer
   x = 23.11