Finding the Fourth Proportional to 441,365.91, 609,066.50 and 250,415.30

Step by Step Solution

1. Step 1: Write the proportion equation
   441,365.91 : 609,066.50 = 250,415.30 : x
2. Step 2: Convert to fraction form
   441,365.91/609,066.50 = 250,415.30/x
3. Step 3: Cross multiply
   441,365.91x = 609,066.50 × 250,415.30
4. Step 4: Simplify right side
   441,365.91x = 152,519,566,020.04
5. Step 5: Solve for x
   x = 152,519,566,020.04/441,365.91
6. Step 6: Final answer
   x = 345,562.63