Finding the Fourth Proportional to 268.00, 402.01 and 105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   268.00 : 402.01 = 105.72 : x
2. Step 2: Convert to fraction form
   268.00/402.01 = 105.72/x
3. Step 3: Cross multiply
   268.00x = 402.01 × 105.72
4. Step 4: Simplify right side
   268.00x = 42,498.73
5. Step 5: Solve for x
   x = 42,498.73/268.00
6. Step 6: Final answer
   x = 158.58