Finding the Fourth Proportional to 68.01, 101.82 and 52.72

Step by Step Solution

1. Step 1: Write the proportion equation
   68.01 : 101.82 = 52.72 : x
2. Step 2: Convert to fraction form
   68.01/101.82 = 52.72/x
3. Step 3: Cross multiply
   68.01x = 101.82 × 52.72
4. Step 4: Simplify right side
   68.01x = 5,367.89
5. Step 5: Solve for x
   x = 5,367.89/68.01
6. Step 6: Final answer
   x = 78.93