Finding the Fourth Proportional to 23,026,969,766.76, 31,778,862,648.75 and 12,726,843,129.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,026,969,766.76 : 31,778,862,648.75 = 12,726,843,129.15 : x
2. Step 2: Convert to fraction form
   23,026,969,766.76/31,778,862,648.75 = 12,726,843,129.15/x
3. Step 3: Cross multiply
   23,026,969,766.76x = 31,778,862,648.75 × 12,726,843,129.15
4. Step 4: Simplify right side
   23,026,969,766.76x = 404,444,599,753,445,474,304
5. Step 5: Solve for x
   x = 404,444,599,753,445,474,304/23,026,969,766.76
6. Step 6: Final answer
   x = 17,563,952,350.23