Finding the Fourth Proportional to 199,726.78, 275,621.56 and 109,082.78

Step by Step Solution

1. Step 1: Write the proportion equation
   199,726.78 : 275,621.56 = 109,082.78 : x
2. Step 2: Convert to fraction form
   199,726.78/275,621.56 = 109,082.78/x
3. Step 3: Cross multiply
   199,726.78x = 275,621.56 × 109,082.78
4. Step 4: Simplify right side
   199,726.78x = 30,065,565,992.74
5. Step 5: Solve for x
   x = 30,065,565,992.74/199,726.78
6. Step 6: Final answer
   x = 150,533.47