Finding the Fourth Proportional to 199,854.86, 275,800.43 and 109,210.82

Step by Step Solution

1. Step 1: Write the proportion equation
   199,854.86 : 275,800.43 = 109,210.82 : x
2. Step 2: Convert to fraction form
   199,854.86/275,800.43 = 109,210.82/x
3. Step 3: Cross multiply
   199,854.86x = 275,800.43 × 109,210.82
4. Step 4: Simplify right side
   199,854.86x = 30,120,391,260.10
5. Step 5: Solve for x
   x = 30,120,391,260.10/199,854.86
6. Step 6: Final answer
   x = 150,711.33