Finding the Fourth Proportional to 200,911, 277,270.14 and 111,487

Step by Step Solution

1. Step 1: Write the proportion equation
   200,911 : 277,270.14 = 111,487 : x
2. Step 2: Convert to fraction form
   200,911/277,270.14 = 111,487/x
3. Step 3: Cross multiply
   200,911x = 277,270.14 × 111,487
4. Step 4: Simplify right side
   200,911x = 30,912,016,098.18
5. Step 5: Solve for x
   x = 30,912,016,098.18/200,911
6. Step 6: Final answer
   x = 153,859.25