Finding the Fourth Proportional to 103.50, 142.83 and 59.87

Step by Step Solution

1. Step 1: Write the proportion equation
   103.50 : 142.83 = 59.87 : x
2. Step 2: Convert to fraction form
   103.50/142.83 = 59.87/x
3. Step 3: Cross multiply
   103.50x = 142.83 × 59.87
4. Step 4: Simplify right side
   103.50x = 8,551.59
5. Step 5: Solve for x
   x = 8,551.59/103.50
6. Step 6: Final answer
   x = 82.62