Finding the Fourth Proportional to 199,808.82, 275,755.25 and 109,178.57

Step by Step Solution

1. Step 1: Write the proportion equation
   199,808.82 : 275,755.25 = 109,178.57 : x
2. Step 2: Convert to fraction form
   199,808.82/275,755.25 = 109,178.57/x
3. Step 3: Cross multiply
   199,808.82x = 275,755.25 × 109,178.57
4. Step 4: Simplify right side
   199,808.82x = 30,106,561,940.32
5. Step 5: Solve for x
   x = 30,106,561,940.32/199,808.82
6. Step 6: Final answer
   x = 150,676.84