Finding the Fourth Proportional to 199,868.72, 275,815.44 and 109,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   199,868.72 : 275,815.44 = 109,222.72 : x
2. Step 2: Convert to fraction form
   199,868.72/275,815.44 = 109,222.72/x
3. Step 3: Cross multiply
   199,868.72x = 275,815.44 × 109,222.72
4. Step 4: Simplify right side
   199,868.72x = 30,125,312,574.80
5. Step 5: Solve for x
   x = 30,125,312,574.80/199,868.72
6. Step 6: Final answer
   x = 150,725.50