Finding the Fourth Proportional to 59.88, 82.65 and 42.42

Step by Step Solution

1. Step 1: Write the proportion equation
   59.88 : 82.65 = 42.42 : x
2. Step 2: Convert to fraction form
   59.88/82.65 = 42.42/x
3. Step 3: Cross multiply
   59.88x = 82.65 × 42.42
4. Step 4: Simplify right side
   59.88x = 3,506.01
5. Step 5: Solve for x
   x = 3,506.01/59.88
6. Step 6: Final answer
   x = 58.55