Finding the Fourth Proportional to 200,456.06, 276,628.55 and 109,811.90

Step by Step Solution

1. Step 1: Write the proportion equation
   200,456.06 : 276,628.55 = 109,811.90 : x
2. Step 2: Convert to fraction form
   200,456.06/276,628.55 = 109,811.90/x
3. Step 3: Cross multiply
   200,456.06x = 276,628.55 × 109,811.90
4. Step 4: Simplify right side
   200,456.06x = 30,377,105,286.60
5. Step 5: Solve for x
   x = 30,377,105,286.60/200,456.06
6. Step 6: Final answer
   x = 151,539.97