Finding the Fourth Proportional to 105.94, 159.16 and 62.72

Step by Step Solution

1. Step 1: Write the proportion equation
   105.94 : 159.16 = 62.72 : x
2. Step 2: Convert to fraction form
   105.94/159.16 = 62.72/x
3. Step 3: Cross multiply
   105.94x = 159.16 × 62.72
4. Step 4: Simplify right side
   105.94x = 9,982.52
5. Step 5: Solve for x
   x = 9,982.52/105.94
6. Step 6: Final answer
   x = 94.23