Finding the Fourth Proportional to 1,229,678,978,070.90, 1,697,010,332,325.90 and 680,970,283,003.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,678,978,070.90 : 1,697,010,332,325.90 = 680,970,283,003.99 : x
2. Step 2: Convert to fraction form
   1,229,678,978,070.90/1,697,010,332,325.90 = 680,970,283,003.99/x
3. Step 3: Cross multiply
   1,229,678,978,070.90x = 1,697,010,332,325.90 × 680,970,283,003.99
4. Step 4: Simplify right side
   1,229,678,978,070.90x = 1,155,613,606,264,663,196,041,216
5. Step 5: Solve for x
   x = 1,155,613,606,264,663,196,041,216/1,229,678,978,070.90
6. Step 6: Final answer
   x = 939,768,530,545.73