Finding the Fourth Proportional to 73.50, 101.42 and 42.42

Step by Step Solution

1. Step 1: Write the proportion equation
   73.50 : 101.42 = 42.42 : x
2. Step 2: Convert to fraction form
   73.50/101.42 = 42.42/x
3. Step 3: Cross multiply
   73.50x = 101.42 × 42.42
4. Step 4: Simplify right side
   73.50x = 4,301.71
5. Step 5: Solve for x
   x = 4,301.71/73.50
6. Step 6: Final answer
   x = 58.53