Finding the Fourth Proportional to 92.59, 127.69 and 71.82

Step by Step Solution

1. Step 1: Write the proportion equation
   92.59 : 127.69 = 71.82 : x
2. Step 2: Convert to fraction form
   92.59/127.69 = 71.82/x
3. Step 3: Cross multiply
   92.59x = 127.69 × 71.82
4. Step 4: Simplify right side
   92.59x = 9,170.52
5. Step 5: Solve for x
   x = 9,170.52/92.59
6. Step 6: Final answer
   x = 99.05