Finding the Fourth Proportional to 42.14, 63.18 and 27.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42.14 : 63.18 = 27.69 : x
2. Step 2: Convert to fraction form
   42.14/63.18 = 27.69/x
3. Step 3: Cross multiply
   42.14x = 63.18 × 27.69
4. Step 4: Simplify right side
   42.14x = 1,749.45
5. Step 5: Solve for x
   x = 1,749.45/42.14
6. Step 6: Final answer
   x = 41.52