Finding the Fourth Proportional to 199,862.52, 275,806.88 and 109,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,862.52 : 275,806.88 = 109,216.50 : x
2. Step 2: Convert to fraction form
   199,862.52/275,806.88 = 109,216.50/x
3. Step 3: Cross multiply
   199,862.52x = 275,806.88 × 109,216.50
4. Step 4: Simplify right side
   199,862.52x = 30,122,662,109.52
5. Step 5: Solve for x
   x = 30,122,662,109.52/199,862.52
6. Step 6: Final answer
   x = 150,716.91