Finding the Fourth Proportional to 105.03, 144.99 and 83.37

Step by Step Solution

1. Step 1: Write the proportion equation
   105.03 : 144.99 = 83.37 : x
2. Step 2: Convert to fraction form
   105.03/144.99 = 83.37/x
3. Step 3: Cross multiply
   105.03x = 144.99 × 83.37
4. Step 4: Simplify right side
   105.03x = 12,087.82
5. Step 5: Solve for x
   x = 12,087.82/105.03
6. Step 6: Final answer
   x = 115.09