Finding the Fourth Proportional to 60.42, 83.31 and 42.01

Step by Step Solution

1. Step 1: Write the proportion equation
   60.42 : 83.31 = 42.01 : x
2. Step 2: Convert to fraction form
   60.42/83.31 = 42.01/x
3. Step 3: Cross multiply
   60.42x = 83.31 × 42.01
4. Step 4: Simplify right side
   60.42x = 3,499.85
5. Step 5: Solve for x
   x = 3,499.85/60.42
6. Step 6: Final answer
   x = 57.93