Finding the Fourth Proportional to 404,726.82, 607,463.46 and 205,187.10

Step by Step Solution

1. Step 1: Write the proportion equation
   404,726.82 : 607,463.46 = 205,187.10 : x
2. Step 2: Convert to fraction form
   404,726.82/607,463.46 = 205,187.10/x
3. Step 3: Cross multiply
   404,726.82x = 607,463.46 × 205,187.10
4. Step 4: Simplify right side
   404,726.82x = 124,643,665,713.37
5. Step 5: Solve for x
   x = 124,643,665,713.37/404,726.82
6. Step 6: Final answer
   x = 307,969.87