Finding the Fourth Proportional to 76.82, 105.72 and 73.76

Step by Step Solution

1. Step 1: Write the proportion equation
   76.82 : 105.72 = 73.76 : x
2. Step 2: Convert to fraction form
   76.82/105.72 = 73.76/x
3. Step 3: Cross multiply
   76.82x = 105.72 × 73.76
4. Step 4: Simplify right side
   76.82x = 7,797.91
5. Step 5: Solve for x
   x = 7,797.91/76.82
6. Step 6: Final answer
   x = 101.51