Finding the Fourth Proportional to 65.27, 97.72 and 51.37

Step by Step Solution

1. Step 1: Write the proportion equation
   65.27 : 97.72 = 51.37 : x
2. Step 2: Convert to fraction form
   65.27/97.72 = 51.37/x
3. Step 3: Cross multiply
   65.27x = 97.72 × 51.37
4. Step 4: Simplify right side
   65.27x = 5,019.50
5. Step 5: Solve for x
   x = 5,019.50/65.27
6. Step 6: Final answer
   x = 76.90