Finding the Fourth Proportional to 766,404.57, 1,057,638.60 and 444,301.41

Step by Step Solution

1. Step 1: Write the proportion equation
   766,404.57 : 1,057,638.60 = 444,301.41 : x
2. Step 2: Convert to fraction form
   766,404.57/1,057,638.60 = 444,301.41/x
3. Step 3: Cross multiply
   766,404.57x = 1,057,638.60 × 444,301.41
4. Step 4: Simplify right side
   766,404.57x = 469,910,321,250.43
5. Step 5: Solve for x
   x = 469,910,321,250.43/766,404.57
6. Step 6: Final answer
   x = 613,136.12