Finding the Fourth Proportional to 127.34, 175.72 and 69.12

Step by Step Solution

1. Step 1: Write the proportion equation
   127.34 : 175.72 = 69.12 : x
2. Step 2: Convert to fraction form
   127.34/175.72 = 69.12/x
3. Step 3: Cross multiply
   127.34x = 175.72 × 69.12
4. Step 4: Simplify right side
   127.34x = 12,145.85
5. Step 5: Solve for x
   x = 12,145.85/127.34
6. Step 6: Final answer
   x = 95.38