Finding the Fourth Proportional to 449,468.91, 620,260.83 and 245,517.39

Step by Step Solution

1. Step 1: Write the proportion equation
   449,468.91 : 620,260.83 = 245,517.39 : x
2. Step 2: Convert to fraction form
   449,468.91/620,260.83 = 245,517.39/x
3. Step 3: Cross multiply
   449,468.91x = 620,260.83 × 245,517.39
4. Step 4: Simplify right side
   449,468.91x = 152,284,820,100.83
5. Step 5: Solve for x
   x = 152,284,820,100.83/449,468.91
6. Step 6: Final answer
   x = 338,810.58