Finding the Fourth Proportional to 59.99, 82.55 and 58.69

Step by Step Solution

1. Step 1: Write the proportion equation
   59.99 : 82.55 = 58.69 : x
2. Step 2: Convert to fraction form
   59.99/82.55 = 58.69/x
3. Step 3: Cross multiply
   59.99x = 82.55 × 58.69
4. Step 4: Simplify right side
   59.99x = 4,844.86
5. Step 5: Solve for x
   x = 4,844.86/59.99
6. Step 6: Final answer
   x = 80.76