Finding the Fourth Proportional to 50.42, 69.50 and 42.08

Step by Step Solution

1. Step 1: Write the proportion equation
   50.42 : 69.50 = 42.08 : x
2. Step 2: Convert to fraction form
   50.42/69.50 = 42.08/x
3. Step 3: Cross multiply
   50.42x = 69.50 × 42.08
4. Step 4: Simplify right side
   50.42x = 2,924.56
5. Step 5: Solve for x
   x = 2,924.56/50.42
6. Step 6: Final answer
   x = 58.01