Finding the Fourth Proportional to 67.70, 101.59 and 50.59

Step by Step Solution

1. Step 1: Write the proportion equation
   67.70 : 101.59 = 50.59 : x
2. Step 2: Convert to fraction form
   67.70/101.59 = 50.59/x
3. Step 3: Cross multiply
   67.70x = 101.59 × 50.59
4. Step 4: Simplify right side
   67.70x = 5,139.44
5. Step 5: Solve for x
   x = 5,139.44/67.70
6. Step 6: Final answer
   x = 75.91