Finding the Fourth Proportional to 198,899.50, 274,481.31 and 109,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   198,899.50 : 274,481.31 = 109,475.50 : x
2. Step 2: Convert to fraction form
   198,899.50/274,481.31 = 109,475.50/x
3. Step 3: Cross multiply
   198,899.50x = 274,481.31 × 109,475.50
4. Step 4: Simplify right side
   198,899.50x = 30,048,978,652.91
5. Step 5: Solve for x
   x = 30,048,978,652.91/198,899.50
6. Step 6: Final answer
   x = 151,076.19