Finding the Fourth Proportional to 21,307,383,881.48, 31,968,173,876.56 and 7,143,751,152.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,307,383,881.48 : 31,968,173,876.56 = 7,143,751,152.56 : x
2. Step 2: Convert to fraction form
   21,307,383,881.48/31,968,173,876.56 = 7,143,751,152.56/x
3. Step 3: Cross multiply
   21,307,383,881.48x = 31,968,173,876.56 × 7,143,751,152.56
4. Step 4: Simplify right side
   21,307,383,881.48x = 228,372,678,975,914,016,768
5. Step 5: Solve for x
   x = 228,372,678,975,914,016,768/21,307,383,881.48
6. Step 6: Final answer
   x = 10,718,006,501.70