Finding the Fourth Proportional to 616,010,144, 850,093,998.72 and 355,249,760

Step by Step Solution

1. Step 1: Write the proportion equation
   616,010,144 : 850,093,998.72 = 355,249,760 : x
2. Step 2: Convert to fraction form
   616,010,144/850,093,998.72 = 355,249,760/x
3. Step 3: Cross multiply
   616,010,144x = 850,093,998.72 × 355,249,760
4. Step 4: Simplify right side
   616,010,144x = 301,995,689,022,720,320
5. Step 5: Solve for x
   x = 301,995,689,022,720,320/616,010,144
6. Step 6: Final answer
   x = 490,244,668.80