Finding the Fourth Proportional to 59.97, 89.97 and 53.10

Step by Step Solution

1. Step 1: Write the proportion equation
   59.97 : 89.97 = 53.10 : x
2. Step 2: Convert to fraction form
   59.97/89.97 = 53.10/x
3. Step 3: Cross multiply
   59.97x = 89.97 × 53.10
4. Step 4: Simplify right side
   59.97x = 4,777.41
5. Step 5: Solve for x
   x = 4,777.41/59.97
6. Step 6: Final answer
   x = 79.66