Finding the Fourth Proportional to 127.91, 176.51 and 69.69

Step by Step Solution

1. Step 1: Write the proportion equation
   127.91 : 176.51 = 69.69 : x
2. Step 2: Convert to fraction form
   127.91/176.51 = 69.69/x
3. Step 3: Cross multiply
   127.91x = 176.51 × 69.69
4. Step 4: Simplify right side
   127.91x = 12,300.98
5. Step 5: Solve for x
   x = 12,300.98/127.91
6. Step 6: Final answer
   x = 96.17