Finding the Fourth Proportional to 59.97, 89.76 and 51.42

Step by Step Solution

1. Step 1: Write the proportion equation
   59.97 : 89.76 = 51.42 : x
2. Step 2: Convert to fraction form
   59.97/89.76 = 51.42/x
3. Step 3: Cross multiply
   59.97x = 89.76 × 51.42
4. Step 4: Simplify right side
   59.97x = 4,615.46
5. Step 5: Solve for x
   x = 4,615.46/59.97
6. Step 6: Final answer
   x = 76.96