Finding the Fourth Proportional to 404,751,436.32, 558,557,162.46 and 219,112,446

Step by Step Solution

1. Step 1: Write the proportion equation
   404,751,436.32 : 558,557,162.46 = 219,112,446 : x
2. Step 2: Convert to fraction form
   404,751,436.32/558,557,162.46 = 219,112,446/x
3. Step 3: Cross multiply
   404,751,436.32x = 558,557,162.46 × 219,112,446
4. Step 4: Simplify right side
   404,751,436.32x = 122,386,826,097,429,984
5. Step 5: Solve for x
   x = 122,386,826,097,429,984/404,751,436.32
6. Step 6: Final answer
   x = 302,375,273.11