Finding the Fourth Proportional to 103.49, 142.81 and 59.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103.49 : 142.81 = 59.82 : x
2. Step 2: Convert to fraction form
   103.49/142.81 = 59.82/x
3. Step 3: Cross multiply
   103.49x = 142.81 × 59.82
4. Step 4: Simplify right side
   103.49x = 8,542.89
5. Step 5: Solve for x
   x = 8,542.89/103.49
6. Step 6: Final answer
   x = 82.55