Finding the Fourth Proportional to 360,468.56, 497,441.42 and 199,320.06

Step by Step Solution

1. Step 1: Write the proportion equation
   360,468.56 : 497,441.42 = 199,320.06 : x
2. Step 2: Convert to fraction form
   360,468.56/497,441.42 = 199,320.06/x
3. Step 3: Cross multiply
   360,468.56x = 497,441.42 × 199,320.06
4. Step 4: Simplify right side
   360,468.56x = 99,150,053,680.89
5. Step 5: Solve for x
   x = 99,150,053,680.89/360,468.56
6. Step 6: Final answer
   x = 275,058.81