Finding the Fourth Proportional to 201,066.72, 277,476.96 and 109,189.94

Step by Step Solution

1. Step 1: Write the proportion equation
   201,066.72 : 277,476.96 = 109,189.94 : x
2. Step 2: Convert to fraction form
   201,066.72/277,476.96 = 109,189.94/x
3. Step 3: Cross multiply
   201,066.72x = 277,476.96 × 109,189.94
4. Step 4: Simplify right side
   201,066.72x = 30,297,692,613.78
5. Step 5: Solve for x
   x = 30,297,692,613.78/201,066.72
6. Step 6: Final answer
   x = 150,684.77