Finding the Fourth Proportional to 76.72, 105.92 and 67.52

Step by Step Solution

1. Step 1: Write the proportion equation
   76.72 : 105.92 = 67.52 : x
2. Step 2: Convert to fraction form
   76.72/105.92 = 67.52/x
3. Step 3: Cross multiply
   76.72x = 105.92 × 67.52
4. Step 4: Simplify right side
   76.72x = 7,151.72
5. Step 5: Solve for x
   x = 7,151.72/76.72
6. Step 6: Final answer
   x = 93.22