Finding the Fourth Proportional to 105.94, 159.02 and 100.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105.94 : 159.02 = 100.88 : x
2. Step 2: Convert to fraction form
   105.94/159.02 = 100.88/x
3. Step 3: Cross multiply
   105.94x = 159.02 × 100.88
4. Step 4: Simplify right side
   105.94x = 16,041.94
5. Step 5: Solve for x
   x = 16,041.94/105.94
6. Step 6: Final answer
   x = 151.42