Finding the Fourth Proportional to 50.42, 69.46 and 38.10

Step by Step Solution

1. Step 1: Write the proportion equation
   50.42 : 69.46 = 38.10 : x
2. Step 2: Convert to fraction form
   50.42/69.46 = 38.10/x
3. Step 3: Cross multiply
   50.42x = 69.46 × 38.10
4. Step 4: Simplify right side
   50.42x = 2,646.59
5. Step 5: Solve for x
   x = 2,646.59/50.42
6. Step 6: Final answer
   x = 52.49