Finding the Fourth Proportional to 199,659.89, 275,528.55 and 109,015.57

Step by Step Solution

1. Step 1: Write the proportion equation
   199,659.89 : 275,528.55 = 109,015.57 : x
2. Step 2: Convert to fraction form
   199,659.89/275,528.55 = 109,015.57/x
3. Step 3: Cross multiply
   199,659.89x = 275,528.55 × 109,015.57
4. Step 4: Simplify right side
   199,659.89x = 30,036,901,929.52
5. Step 5: Solve for x
   x = 30,036,901,929.52/199,659.89
6. Step 6: Final answer
   x = 150,440.34