Finding the Fourth Proportional to 745,155,453.42, 1,028,321,326.27 and 410,639,978.25

Step by Step Solution

1. Step 1: Write the proportion equation
   745,155,453.42 : 1,028,321,326.27 = 410,639,978.25 : x
2. Step 2: Convert to fraction form
   745,155,453.42/1,028,321,326.27 = 410,639,978.25/x
3. Step 3: Cross multiply
   745,155,453.42x = 1,028,321,326.27 × 410,639,978.25
4. Step 4: Simplify right side
   745,155,453.42x = 422,269,847,052,497,344
5. Step 5: Solve for x
   x = 422,269,847,052,497,344/745,155,453.42
6. Step 6: Final answer
   x = 566,686,917.63