Finding the Fourth Proportional to 405,071.82, 559,046.61 and 244,008.18

Step by Step Solution

1. Step 1: Write the proportion equation
   405,071.82 : 559,046.61 = 244,008.18 : x
2. Step 2: Convert to fraction form
   405,071.82/559,046.61 = 244,008.18/x
3. Step 3: Cross multiply
   405,071.82x = 559,046.61 × 244,008.18
4. Step 4: Simplify right side
   405,071.82x = 136,411,945,841.27
5. Step 5: Solve for x
   x = 136,411,945,841.27/405,071.82
6. Step 6: Final answer
   x = 336,759.90