Finding the Fourth Proportional to 200,612, 276,844.56 and 111,188

Step by Step Solution

1. Step 1: Write the proportion equation
   200,612 : 276,844.56 = 111,188 : x
2. Step 2: Convert to fraction form
   200,612/276,844.56 = 111,188/x
3. Step 3: Cross multiply
   200,612x = 276,844.56 × 111,188
4. Step 4: Simplify right side
   200,612x = 30,781,792,937.28
5. Step 5: Solve for x
   x = 30,781,792,937.28/200,612
6. Step 6: Final answer
   x = 153,439.44