Finding the Fourth Proportional to 199,901.69, 275,870.72 and 109,255.67

Step by Step Solution

1. Step 1: Write the proportion equation
   199,901.69 : 275,870.72 = 109,255.67 : x
2. Step 2: Convert to fraction form
   199,901.69/275,870.72 = 109,255.67/x
3. Step 3: Cross multiply
   199,901.69x = 275,870.72 × 109,255.67
4. Step 4: Simplify right side
   199,901.69x = 30,140,439,800.70
5. Step 5: Solve for x
   x = 30,140,439,800.70/199,901.69
6. Step 6: Final answer
   x = 150,776.31