Finding the Fourth Proportional to 95.42, 131.54 and 92.72

Step by Step Solution

1. Step 1: Write the proportion equation
   95.42 : 131.54 = 92.72 : x
2. Step 2: Convert to fraction form
   95.42/131.54 = 92.72/x
3. Step 3: Cross multiply
   95.42x = 131.54 × 92.72
4. Step 4: Simplify right side
   95.42x = 12,196.39
5. Step 5: Solve for x
   x = 12,196.39/95.42
6. Step 6: Final answer
   x = 127.82