Finding the Fourth Proportional to 104.74, 144.59 and 83.02

Step by Step Solution

1. Step 1: Write the proportion equation
   104.74 : 144.59 = 83.02 : x
2. Step 2: Convert to fraction form
   104.74/144.59 = 83.02/x
3. Step 3: Cross multiply
   104.74x = 144.59 × 83.02
4. Step 4: Simplify right side
   104.74x = 12,003.86
5. Step 5: Solve for x
   x = 12,003.86/104.74
6. Step 6: Final answer
   x = 114.61