Finding the Fourth Proportional to 22,686,404,067.62, 31,309,982,908.06 and 12,911,917,590.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,686,404,067.62 : 31,309,982,908.06 = 12,911,917,590.28 : x
2. Step 2: Convert to fraction form
   22,686,404,067.62/31,309,982,908.06 = 12,911,917,590.28/x
3. Step 3: Cross multiply
   22,686,404,067.62x = 31,309,982,908.06 × 12,911,917,590.28
4. Step 4: Simplify right side
   22,686,404,067.62x = 404,271,919,061,946,073,088
5. Step 5: Solve for x
   x = 404,271,919,061,946,073,088/22,686,404,067.62
6. Step 6: Final answer
   x = 17,820,008,753.13