Finding the Fourth Proportional to 22,361,048.30, 30,857,531.90 and 12,571,906.70

Step by Step Solution

1. Step 1: Write the proportion equation
   22,361,048.30 : 30,857,531.90 = 12,571,906.70 : x
2. Step 2: Convert to fraction form
   22,361,048.30/30,857,531.90 = 12,571,906.70/x
3. Step 3: Cross multiply
   22,361,048.30x = 30,857,531.90 × 12,571,906.70
4. Step 4: Simplify right side
   22,361,048.30x = 387,938,012,039,073.69
5. Step 5: Solve for x
   x = 387,938,012,039,073.69/22,361,048.30
6. Step 6: Final answer
   x = 17,348,829.39