Finding the Fourth Proportional to 22,686,404,101.67, 31,309,982,955.12 and 12,911,917,624.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,686,404,101.67 : 31,309,982,955.12 = 12,911,917,624.51 : x
2. Step 2: Convert to fraction form
   22,686,404,101.67/31,309,982,955.12 = 12,911,917,624.51/x
3. Step 3: Cross multiply
   22,686,404,101.67x = 31,309,982,955.12 × 12,911,917,624.51
4. Step 4: Simplify right side
   22,686,404,101.67x = 404,271,920,741,321,605,120
5. Step 5: Solve for x
   x = 404,271,920,741,321,605,120/22,686,404,101.67
6. Step 6: Final answer
   x = 17,820,008,800.41