Finding the Fourth Proportional to 876,615.83, 1,315,055.24 and 307,896.69

Step by Step Solution

1. Step 1: Write the proportion equation
   876,615.83 : 1,315,055.24 = 307,896.69 : x
2. Step 2: Convert to fraction form
   876,615.83/1,315,055.24 = 307,896.69/x
3. Step 3: Cross multiply
   876,615.83x = 1,315,055.24 × 307,896.69
4. Step 4: Simplify right side
   876,615.83x = 404,901,155,563.16
5. Step 5: Solve for x
   x = 404,901,155,563.16/876,615.83
6. Step 6: Final answer
   x = 461,891.22