Finding the Fourth Proportional to 199,016.72, 274,647.98 and 108,377.62

Step by Step Solution

1. Step 1: Write the proportion equation
   199,016.72 : 274,647.98 = 108,377.62 : x
2. Step 2: Convert to fraction form
   199,016.72/274,647.98 = 108,377.62/x
3. Step 3: Cross multiply
   199,016.72x = 274,647.98 × 108,377.62
4. Step 4: Simplify right side
   199,016.72x = 29,765,694,410.21
5. Step 5: Solve for x
   x = 29,765,694,410.21/199,016.72
6. Step 6: Final answer
   x = 149,563.79