Finding the Fourth Proportional to 105.62, 145.82 and 68.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105.62 : 145.82 = 68.83 : x
2. Step 2: Convert to fraction form
   105.62/145.82 = 68.83/x
3. Step 3: Cross multiply
   105.62x = 145.82 × 68.83
4. Step 4: Simplify right side
   105.62x = 10,036.79
5. Step 5: Solve for x
   x = 10,036.79/105.62
6. Step 6: Final answer
   x = 95.03