Finding the Fourth Proportional to 67.62, 101.50 and 51.69

Step by Step Solution

1. Step 1: Write the proportion equation
   67.62 : 101.50 = 51.69 : x
2. Step 2: Convert to fraction form
   67.62/101.50 = 51.69/x
3. Step 3: Cross multiply
   67.62x = 101.50 × 51.69
4. Step 4: Simplify right side
   67.62x = 5,246.54
5. Step 5: Solve for x
   x = 5,246.54/67.62
6. Step 6: Final answer
   x = 77.59