Finding the Fourth Proportional to 3,099,633.48, 4,649,443.74 and 855,765

Step by Step Solution

1. Step 1: Write the proportion equation
   3,099,633.48 : 4,649,443.74 = 855,765 : x
2. Step 2: Convert to fraction form
   3,099,633.48/4,649,443.74 = 855,765/x
3. Step 3: Cross multiply
   3,099,633.48x = 4,649,443.74 × 855,765
4. Step 4: Simplify right side
   3,099,633.48x = 3,978,831,222,161.10
5. Step 5: Solve for x
   x = 3,978,831,222,161.10/3,099,633.48
6. Step 6: Final answer
   x = 1,283,645.71