Finding the Fourth Proportional to 59.09, 80.99 and 59.00

Step by Step Solution

1. Step 1: Write the proportion equation
   59.09 : 80.99 = 59.00 : x
2. Step 2: Convert to fraction form
   59.09/80.99 = 59.00/x
3. Step 3: Cross multiply
   59.09x = 80.99 × 59.00
4. Step 4: Simplify right side
   59.09x = 4,778.15
5. Step 5: Solve for x
   x = 4,778.15/59.09
6. Step 6: Final answer
   x = 80.87