Finding the Fourth Proportional to 67.98, 102.03 and 52.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67.98 : 102.03 = 52.72 : x
2. Step 2: Convert to fraction form
   67.98/102.03 = 52.72/x
3. Step 3: Cross multiply
   67.98x = 102.03 × 52.72
4. Step 4: Simplify right side
   67.98x = 5,379.02
5. Step 5: Solve for x
   x = 5,379.02/67.98
6. Step 6: Final answer
   x = 79.13