Finding the Fourth Proportional to 200,843.50, 277,164.04 and 111,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,843.50 : 277,164.04 = 111,419.50 : x
2. Step 2: Convert to fraction form
   200,843.50/277,164.04 = 111,419.50/x
3. Step 3: Cross multiply
   200,843.50x = 277,164.04 × 111,419.50
4. Step 4: Simplify right side
   200,843.50x = 30,881,478,754.78
5. Step 5: Solve for x
   x = 30,881,478,754.78/200,843.50
6. Step 6: Final answer
   x = 153,758.92