Finding the Fourth Proportional to 76.73, 105.72 and 59.24

Step by Step Solution

1. Step 1: Write the proportion equation
   76.73 : 105.72 = 59.24 : x
2. Step 2: Convert to fraction form
   76.73/105.72 = 59.24/x
3. Step 3: Cross multiply
   76.73x = 105.72 × 59.24
4. Step 4: Simplify right side
   76.73x = 6,262.32
5. Step 5: Solve for x
   x = 6,262.32/76.73
6. Step 6: Final answer
   x = 81.62