Finding the Fourth Proportional to 142.83, 196.83 and 109.98

Step by Step Solution

1. Step 1: Write the proportion equation
   142.83 : 196.83 = 109.98 : x
2. Step 2: Convert to fraction form
   142.83/196.83 = 109.98/x
3. Step 3: Cross multiply
   142.83x = 196.83 × 109.98
4. Step 4: Simplify right side
   142.83x = 21,647.36
5. Step 5: Solve for x
   x = 21,647.36/142.83
6. Step 6: Final answer
   x = 151.56