Finding the Fourth Proportional to 200,321.90, 276,433.72 and 109,660.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,321.90 : 276,433.72 = 109,660.50 : x
2. Step 2: Convert to fraction form
   200,321.90/276,433.72 = 109,660.50/x
3. Step 3: Cross multiply
   200,321.90x = 276,433.72 × 109,660.50
4. Step 4: Simplify right side
   200,321.90x = 30,313,860,196.22
5. Step 5: Solve for x
   x = 30,313,860,196.22/200,321.90
6. Step 6: Final answer
   x = 151,325.75