Finding the Fourth Proportional to 67.94, 101.78 and 43.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67.94 : 101.78 = 43.50 : x
2. Step 2: Convert to fraction form
   67.94/101.78 = 43.50/x
3. Step 3: Cross multiply
   67.94x = 101.78 × 43.50
4. Step 4: Simplify right side
   67.94x = 4,427.21
5. Step 5: Solve for x
   x = 4,427.21/67.94
6. Step 6: Final answer
   x = 65.17