Finding the Fourth Proportional to 820,635,667.75, 1,132,486,357.49 and 444,300,456.63

Step by Step Solution

1. Step 1: Write the proportion equation
   820,635,667.75 : 1,132,486,357.49 = 444,300,456.63 : x
2. Step 2: Convert to fraction form
   820,635,667.75/1,132,486,357.49 = 444,300,456.63/x
3. Step 3: Cross multiply
   820,635,667.75x = 1,132,486,357.49 × 444,300,456.63
4. Step 4: Simplify right side
   820,635,667.75x = 503,164,205,763,721,664
5. Step 5: Solve for x
   x = 503,164,205,763,721,664/820,635,667.75
6. Step 6: Final answer
   x = 613,139,576.47