Finding the Fourth Proportional to 123.17, 183.82 and 109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123.17 : 183.82 = 109.50 : x
2. Step 2: Convert to fraction form
   123.17/183.82 = 109.50/x
3. Step 3: Cross multiply
   123.17x = 183.82 × 109.50
4. Step 4: Simplify right side
   123.17x = 20,128.57
5. Step 5: Solve for x
   x = 20,128.57/123.17
6. Step 6: Final answer
   x = 163.42