Finding the Fourth Proportional to 105.97, 146.23 and 62.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105.97 : 146.23 = 62.31 : x
2. Step 2: Convert to fraction form
   105.97/146.23 = 62.31/x
3. Step 3: Cross multiply
   105.97x = 146.23 × 62.31
4. Step 4: Simplify right side
   105.97x = 9,111.59
5. Step 5: Solve for x
   x = 9,111.59/105.97
6. Step 6: Final answer
   x = 85.98