Finding the Fourth Proportional to 408,857.82, 613,243.59 and 109,368.63

Step by Step Solution

1. Step 1: Write the proportion equation
   408,857.82 : 613,243.59 = 109,368.63 : x
2. Step 2: Convert to fraction form
   408,857.82/613,243.59 = 109,368.63/x
3. Step 3: Cross multiply
   408,857.82x = 613,243.59 × 109,368.63
4. Step 4: Simplify right side
   408,857.82x = 67,069,611,294.58
5. Step 5: Solve for x
   x = 67,069,611,294.58/408,857.82
6. Step 6: Final answer
   x = 164,041.41