Finding the Fourth Proportional to 404,750,997.82, 558,556,557.33 and 219,112,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,750,997.82 : 558,556,557.33 = 219,112,007.50 : x
2. Step 2: Convert to fraction form
   404,750,997.82/558,556,557.33 = 219,112,007.50/x
3. Step 3: Cross multiply
   404,750,997.82x = 558,556,557.33 × 219,112,007.50
4. Step 4: Simplify right side
   404,750,997.82x = 122,386,448,578,865,152
5. Step 5: Solve for x
   x = 122,386,448,578,865,152/404,750,997.82
6. Step 6: Final answer
   x = 302,374,667.98