Finding the Fourth Proportional to 405,150.72, 559,059.84 and 244,003.20

Step by Step Solution

1. Step 1: Write the proportion equation
   405,150.72 : 559,059.84 = 244,003.20 : x
2. Step 2: Convert to fraction form
   405,150.72/559,059.84 = 244,003.20/x
3. Step 3: Cross multiply
   405,150.72x = 559,059.84 × 244,003.20
4. Step 4: Simplify right side
   405,150.72x = 136,412,389,951.49
5. Step 5: Solve for x
   x = 136,412,389,951.49/405,150.72
6. Step 6: Final answer
   x = 336,695.42