Finding the Fourth Proportional to 95.50, 131.72 and 62.72

Step by Step Solution

1. Step 1: Write the proportion equation
   95.50 : 131.72 = 62.72 : x
2. Step 2: Convert to fraction form
   95.50/131.72 = 62.72/x
3. Step 3: Cross multiply
   95.50x = 131.72 × 62.72
4. Step 4: Simplify right side
   95.50x = 8,261.48
5. Step 5: Solve for x
   x = 8,261.48/95.50
6. Step 6: Final answer
   x = 86.51