Finding the Fourth Proportional to 22,053,067.12, 30,428,772.96 and 12,883,938.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,053,067.12 : 30,428,772.96 = 12,883,938.40 : x
2. Step 2: Convert to fraction form
   22,053,067.12/30,428,772.96 = 12,883,938.40/x
3. Step 3: Cross multiply
   22,053,067.12x = 30,428,772.96 × 12,883,938.40
4. Step 4: Simplify right side
   22,053,067.12x = 392,042,436,404,225.69
5. Step 5: Solve for x
   x = 392,042,436,404,225.69/22,053,067.12
6. Step 6: Final answer
   x = 17,777,229.55