Finding the Fourth Proportional to 551,123,581.82, 760,550,207.61 and 303,604,936.07

Step by Step Solution

1. Step 1: Write the proportion equation
   551,123,581.82 : 760,550,207.61 = 303,604,936.07 : x
2. Step 2: Convert to fraction form
   551,123,581.82/760,550,207.61 = 303,604,936.07/x
3. Step 3: Cross multiply
   551,123,581.82x = 760,550,207.61 × 303,604,936.07
4. Step 4: Simplify right side
   551,123,581.82x = 230,906,797,161,016,320
5. Step 5: Solve for x
   x = 230,906,797,161,016,320/551,123,581.82
6. Step 6: Final answer
   x = 418,974,627.07