Finding the Fourth Proportional to 92.05, 127.06 and 59.31

Step by Step Solution

1. Step 1: Write the proportion equation
   92.05 : 127.06 = 59.31 : x
2. Step 2: Convert to fraction form
   92.05/127.06 = 59.31/x
3. Step 3: Cross multiply
   92.05x = 127.06 × 59.31
4. Step 4: Simplify right side
   92.05x = 7,535.78
5. Step 5: Solve for x
   x = 7,535.78/92.05
6. Step 6: Final answer
   x = 81.87