Finding the Fourth Proportional to 21,051,142,574.27, 29,052,002,059.90 and 11,892,494,908.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,051,142,574.27 : 29,052,002,059.90 = 11,892,494,908.09 : x
2. Step 2: Convert to fraction form
   21,051,142,574.27/29,052,002,059.90 = 11,892,494,908.09/x
3. Step 3: Cross multiply
   21,051,142,574.27x = 29,052,002,059.90 × 11,892,494,908.09
4. Step 4: Simplify right side
   21,051,142,574.27x = 345,500,786,567,174,291,456
5. Step 5: Solve for x
   x = 345,500,786,567,174,291,456/21,051,142,574.27
6. Step 6: Final answer
   x = 16,412,448,177.02