Finding the Fourth Proportional to 199,398.72, 275,168.96 and 109,974.72

Step by Step Solution

1. Step 1: Write the proportion equation
   199,398.72 : 275,168.96 = 109,974.72 : x
2. Step 2: Convert to fraction form
   199,398.72/275,168.96 = 109,974.72/x
3. Step 3: Cross multiply
   199,398.72x = 275,168.96 × 109,974.72
4. Step 4: Simplify right side
   199,398.72x = 30,261,629,328.69
5. Step 5: Solve for x
   x = 30,261,629,328.69/199,398.72
6. Step 6: Final answer
   x = 151,764.41