Finding the Fourth Proportional to 59.99, 89.34 and 56.24

Step by Step Solution

1. Step 1: Write the proportion equation
   59.99 : 89.34 = 56.24 : x
2. Step 2: Convert to fraction form
   59.99/89.34 = 56.24/x
3. Step 3: Cross multiply
   59.99x = 89.34 × 56.24
4. Step 4: Simplify right side
   59.99x = 5,024.62
5. Step 5: Solve for x
   x = 5,024.62/59.99
6. Step 6: Final answer
   x = 83.76