Finding the Fourth Proportional to 200.42, 300.71 and 109.01

Step by Step Solution

1. Step 1: Write the proportion equation
   200.42 : 300.71 = 109.01 : x
2. Step 2: Convert to fraction form
   200.42/300.71 = 109.01/x
3. Step 3: Cross multiply
   200.42x = 300.71 × 109.01
4. Step 4: Simplify right side
   200.42x = 32,781.42
5. Step 5: Solve for x
   x = 32,781.42/200.42
6. Step 6: Final answer
   x = 163.56