Finding the Fourth Proportional to 303,597.40, 418,788.77 and 196,167.43

Step by Step Solution

1. Step 1: Write the proportion equation
   303,597.40 : 418,788.77 = 196,167.43 : x
2. Step 2: Convert to fraction form
   303,597.40/418,788.77 = 196,167.43/x
3. Step 3: Cross multiply
   303,597.40x = 418,788.77 × 196,167.43
4. Step 4: Simplify right side
   303,597.40x = 82,152,713,648.98
5. Step 5: Solve for x
   x = 82,152,713,648.98/303,597.40
6. Step 6: Final answer
   x = 270,597.56