Finding the Fourth Proportional to 86.00, 118.67 and 59.76

Step by Step Solution

1. Step 1: Write the proportion equation
   86.00 : 118.67 = 59.76 : x
2. Step 2: Convert to fraction form
   86.00/118.67 = 59.76/x
3. Step 3: Cross multiply
   86.00x = 118.67 × 59.76
4. Step 4: Simplify right side
   86.00x = 7,091.42
5. Step 5: Solve for x
   x = 7,091.42/86.00
6. Step 6: Final answer
   x = 82.46