Finding the Fourth Proportional to 22,686,401,218.22, 31,309,979,047.36 and 12,911,914,869.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,686,401,218.22 : 31,309,979,047.36 = 12,911,914,869.98 : x
2. Step 2: Convert to fraction form
   22,686,401,218.22/31,309,979,047.36 = 12,911,914,869.98/x
3. Step 3: Cross multiply
   22,686,401,218.22x = 31,309,979,047.36 × 12,911,914,869.98
4. Step 4: Simplify right side
   22,686,401,218.22x = 404,271,784,040,369,815,552
5. Step 5: Solve for x
   x = 404,271,784,040,369,815,552/22,686,401,218.22
6. Step 6: Final answer
   x = 17,820,005,039.66