Finding the Fourth Proportional to 304,288.22, 419,776.35 and 196,892.89

Step by Step Solution

1. Step 1: Write the proportion equation
   304,288.22 : 419,776.35 = 196,892.89 : x
2. Step 2: Convert to fraction form
   304,288.22/419,776.35 = 196,892.89/x
3. Step 3: Cross multiply
   304,288.22x = 419,776.35 × 196,892.89
4. Step 4: Simplify right side
   304,288.22x = 82,650,978,705.15
5. Step 5: Solve for x
   x = 82,650,978,705.15/304,288.22
6. Step 6: Final answer
   x = 271,620.70