Finding the Fourth Proportional to 73.42, 101.31 and 42.32

Step by Step Solution

1. Step 1: Write the proportion equation
   73.42 : 101.31 = 42.32 : x
2. Step 2: Convert to fraction form
   73.42/101.31 = 42.32/x
3. Step 3: Cross multiply
   73.42x = 101.31 × 42.32
4. Step 4: Simplify right side
   73.42x = 4,287.53
5. Step 5: Solve for x
   x = 4,287.53/73.42
6. Step 6: Final answer
   x = 58.40