Finding the Fourth Proportional to 304,298.58, 419,790.56 and 196,903.30

Step by Step Solution

1. Step 1: Write the proportion equation
   304,298.58 : 419,790.56 = 196,903.30 : x
2. Step 2: Convert to fraction form
   304,298.58/419,790.56 = 196,903.30/x
3. Step 3: Cross multiply
   304,298.58x = 419,790.56 × 196,903.30
4. Step 4: Simplify right side
   304,298.58x = 82,658,146,572.85
5. Step 5: Solve for x
   x = 82,658,146,572.85/304,298.58
6. Step 6: Final answer
   x = 271,635.01