Finding the Fourth Proportional to 109.83, 151.50 and 82.17

Step by Step Solution

1. Step 1: Write the proportion equation
   109.83 : 151.50 = 82.17 : x
2. Step 2: Convert to fraction form
   109.83/151.50 = 82.17/x
3. Step 3: Cross multiply
   109.83x = 151.50 × 82.17
4. Step 4: Simplify right side
   109.83x = 12,448.76
5. Step 5: Solve for x
   x = 12,448.76/109.83
6. Step 6: Final answer
   x = 113.35