Finding the Fourth Proportional to 1,229,678,978,074.90, 1,697,010,332,331.50 and 680,970,283,007.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,678,978,074.90 : 1,697,010,332,331.50 = 680,970,283,007.99 : x
2. Step 2: Convert to fraction form
   1,229,678,978,074.90/1,697,010,332,331.50 = 680,970,283,007.99/x
3. Step 3: Cross multiply
   1,229,678,978,074.90x = 1,697,010,332,331.50 × 680,970,283,007.99
4. Step 4: Simplify right side
   1,229,678,978,074.90x = 1,155,613,606,275,264,651,722,752
5. Step 5: Solve for x
   x = 1,155,613,606,275,264,651,722,752/1,229,678,978,074.90
6. Step 6: Final answer
   x = 939,768,530,551.29