Finding the Fourth Proportional to 59.88, 82.62 and 54.42

Step by Step Solution

1. Step 1: Write the proportion equation
   59.88 : 82.62 = 54.42 : x
2. Step 2: Convert to fraction form
   59.88/82.62 = 54.42/x
3. Step 3: Cross multiply
   59.88x = 82.62 × 54.42
4. Step 4: Simplify right side
   59.88x = 4,496.18
5. Step 5: Solve for x
   x = 4,496.18/59.88
6. Step 6: Final answer
   x = 75.09