Finding the Fourth Proportional to 199,899.68, 275,856.89 and 109,256.23

Step by Step Solution

1. Step 1: Write the proportion equation
   199,899.68 : 275,856.89 = 109,256.23 : x
2. Step 2: Convert to fraction form
   199,899.68/275,856.89 = 109,256.23/x
3. Step 3: Cross multiply
   199,899.68x = 275,856.89 × 109,256.23
4. Step 4: Simplify right side
   199,899.68x = 30,139,082,585.00
5. Step 5: Solve for x
   x = 30,139,082,585.00/199,899.68
6. Step 6: Final answer
   x = 150,771.04