Finding the Fourth Proportional to 404,727.82, 607,464.96 and 205,188.10

Step by Step Solution

1. Step 1: Write the proportion equation
   404,727.82 : 607,464.96 = 205,188.10 : x
2. Step 2: Convert to fraction form
   404,727.82/607,464.96 = 205,188.10/x
3. Step 3: Cross multiply
   404,727.82x = 607,464.96 × 205,188.10
4. Step 4: Simplify right side
   404,727.82x = 124,644,580,958.98
5. Step 5: Solve for x
   x = 124,644,580,958.98/404,727.82
6. Step 6: Final answer
   x = 307,971.37