Finding the Fourth Proportional to 200,311.02, 276,432.48 and 109,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,311.02 : 276,432.48 = 109,665.50 : x
2. Step 2: Convert to fraction form
   200,311.02/276,432.48 = 109,665.50/x
3. Step 3: Cross multiply
   200,311.02x = 276,432.48 × 109,665.50
4. Step 4: Simplify right side
   200,311.02x = 30,315,104,753.28
5. Step 5: Solve for x
   x = 30,315,104,753.28/200,311.02
6. Step 6: Final answer
   x = 151,340.17