Finding the Fourth Proportional to 404,751,433.32, 558,557,158.32 and 219,112,443

Step by Step Solution

1. Step 1: Write the proportion equation
   404,751,433.32 : 558,557,158.32 = 219,112,443 : x
2. Step 2: Convert to fraction form
   404,751,433.32/558,557,158.32 = 219,112,443/x
3. Step 3: Cross multiply
   404,751,433.32x = 558,557,158.32 × 219,112,443
4. Step 4: Simplify right side
   404,751,433.32x = 122,386,823,514,632,992
5. Step 5: Solve for x
   x = 122,386,823,514,632,992/404,751,433.32
6. Step 6: Final answer
   x = 302,375,268.97