Finding the Fourth Proportional to 404,756,200.73, 558,563,743.89 and 219,117,216.42

Step by Step Solution

1. Step 1: Write the proportion equation
   404,756,200.73 : 558,563,743.89 = 219,117,216.42 : x
2. Step 2: Convert to fraction form
   404,756,200.73/558,563,743.89 = 219,117,216.42/x
3. Step 3: Cross multiply
   404,756,200.73x = 558,563,743.89 × 219,117,216.42
4. Step 4: Simplify right side
   404,756,200.73x = 122,390,932,754,310,576
5. Step 5: Solve for x
   x = 122,390,932,754,310,576/404,756,200.73
6. Step 6: Final answer
   x = 302,381,859.83