Finding the Fourth Proportional to 22,686,404,064.86, 31,309,982,904.26 and 12,911,917,587.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,686,404,064.86 : 31,309,982,904.26 = 12,911,917,587.53 : x
2. Step 2: Convert to fraction form
   22,686,404,064.86/31,309,982,904.26 = 12,911,917,587.53/x
3. Step 3: Cross multiply
   22,686,404,064.86x = 31,309,982,904.26 × 12,911,917,587.53
4. Step 4: Simplify right side
   22,686,404,064.86x = 404,271,918,926,660,501,504
5. Step 5: Solve for x
   x = 404,271,918,926,660,501,504/22,686,404,064.86
6. Step 6: Final answer
   x = 17,820,008,749.33