Finding the Fourth Proportional to 103.48, 142.78 and 59.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103.48 : 142.78 = 59.82 : x
2. Step 2: Convert to fraction form
   103.48/142.78 = 59.82/x
3. Step 3: Cross multiply
   103.48x = 142.78 × 59.82
4. Step 4: Simplify right side
   103.48x = 8,541.10
5. Step 5: Solve for x
   x = 8,541.10/103.48
6. Step 6: Final answer
   x = 82.54