Finding the Fourth Proportional to 404,604,399.14, 558,354,063.88 and 218,965,414.83

Step by Step Solution

1. Step 1: Write the proportion equation
   404,604,399.14 : 558,354,063.88 = 218,965,414.83 : x
2. Step 2: Convert to fraction form
   404,604,399.14/558,354,063.88 = 218,965,414.83/x
3. Step 3: Cross multiply
   404,604,399.14x = 558,354,063.88 × 218,965,414.83
4. Step 4: Simplify right side
   404,604,399.14x = 122,260,229,219,500,528
5. Step 5: Solve for x
   x = 122,260,229,219,500,528/404,604,399.14
6. Step 6: Final answer
   x = 302,172,268.71