Finding the Fourth Proportional to 820,861,465.15, 1,132,789,435.71 and 444,518,465.47

Step by Step Solution

1. Step 1: Write the proportion equation
   820,861,465.15 : 1,132,789,435.71 = 444,518,465.47 : x
2. Step 2: Convert to fraction form
   820,861,465.15/1,132,789,435.71 = 444,518,465.47/x
3. Step 3: Cross multiply
   820,861,465.15x = 1,132,789,435.71 × 444,518,465.47
4. Step 4: Simplify right side
   820,861,465.15x = 503,545,821,666,837,952
5. Step 5: Solve for x
   x = 503,545,821,666,837,952/820,861,465.15
6. Step 6: Final answer
   x = 613,435,814.75