Finding the Fourth Proportional to 67.98, 101.88 and 43.56

Step by Step Solution

1. Step 1: Write the proportion equation
   67.98 : 101.88 = 43.56 : x
2. Step 2: Convert to fraction form
   67.98/101.88 = 43.56/x
3. Step 3: Cross multiply
   67.98x = 101.88 × 43.56
4. Step 4: Simplify right side
   67.98x = 4,437.89
5. Step 5: Solve for x
   x = 4,437.89/67.98
6. Step 6: Final answer
   x = 65.28