Finding the Fourth Proportional to 404,751,374.82, 558,557,077.59 and 219,112,384.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,751,374.82 : 558,557,077.59 = 219,112,384.50 : x
2. Step 2: Convert to fraction form
   404,751,374.82/558,557,077.59 = 219,112,384.50/x
3. Step 3: Cross multiply
   404,751,374.82x = 558,557,077.59 × 219,112,384.50
4. Step 4: Simplify right side
   404,751,374.82x = 122,386,773,150,096,416
5. Step 5: Solve for x
   x = 122,386,773,150,096,416/404,751,374.82
6. Step 6: Final answer
   x = 302,375,188.24