Finding the Fourth Proportional to 42.41, 63.59 and 16.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42.41 : 63.59 = 16.71 : x
2. Step 2: Convert to fraction form
   42.41/63.59 = 16.71/x
3. Step 3: Cross multiply
   42.41x = 63.59 × 16.71
4. Step 4: Simplify right side
   42.41x = 1,062.59
5. Step 5: Solve for x
   x = 1,062.59/42.41
6. Step 6: Final answer
   x = 25.06