Finding the Fourth Proportional to 22,686,404,102.67, 31,309,982,956.50 and 12,911,917,625.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,686,404,102.67 : 31,309,982,956.50 = 12,911,917,625.51 : x
2. Step 2: Convert to fraction form
   22,686,404,102.67/31,309,982,956.50 = 12,911,917,625.51/x
3. Step 3: Cross multiply
   22,686,404,102.67x = 31,309,982,956.50 × 12,911,917,625.51
4. Step 4: Simplify right side
   22,686,404,102.67x = 404,271,920,790,450,077,696
5. Step 5: Solve for x
   x = 404,271,920,790,450,077,696/22,686,404,102.67
6. Step 6: Final answer
   x = 17,820,008,801.79