Finding the Fourth Proportional to 408,870.02, 613,042.56 and 268,464.62

Step by Step Solution

1. Step 1: Write the proportion equation
   408,870.02 : 613,042.56 = 268,464.62 : x
2. Step 2: Convert to fraction form
   408,870.02/613,042.56 = 268,464.62/x
3. Step 3: Cross multiply
   408,870.02x = 613,042.56 × 268,464.62
4. Step 4: Simplify right side
   408,870.02x = 164,580,237,914.23
5. Step 5: Solve for x
   x = 164,580,237,914.23/408,870.02
6. Step 6: Final answer
   x = 402,524.59