Finding the Fourth Proportional to 42.14, 63.18 and 14.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42.14 : 63.18 = 14.72 : x
2. Step 2: Convert to fraction form
   42.14/63.18 = 14.72/x
3. Step 3: Cross multiply
   42.14x = 63.18 × 14.72
4. Step 4: Simplify right side
   42.14x = 930.01
5. Step 5: Solve for x
   x = 930.01/42.14
6. Step 6: Final answer
   x = 22.07