Finding the Fourth Proportional to 42.37, 63.33 and 38.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42.37 : 63.33 = 38.96 : x
2. Step 2: Convert to fraction form
   42.37/63.33 = 38.96/x
3. Step 3: Cross multiply
   42.37x = 63.33 × 38.96
4. Step 4: Simplify right side
   42.37x = 2,467.15
5. Step 5: Solve for x
   x = 2,467.15/42.37
6. Step 6: Final answer
   x = 58.22