Finding the Fourth Proportional to 418,473, 627,985.98 and 196,874.28

Step by Step Solution

1. Step 1: Write the proportion equation
   418,473 : 627,985.98 = 196,874.28 : x
2. Step 2: Convert to fraction form
   418,473/627,985.98 = 196,874.28/x
3. Step 3: Cross multiply
   418,473x = 627,985.98 × 196,874.28
4. Step 4: Simplify right side
   418,473x = 123,634,287,662.59
5. Step 5: Solve for x
   x = 123,634,287,662.59/418,473
6. Step 6: Final answer
   x = 295,441.49