Finding the Fourth Proportional to 22,665,198.20, 31,277,061.42 and 12,351,698.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665,198.20 : 31,277,061.42 = 12,351,698.60 : x
2. Step 2: Convert to fraction form
   22,665,198.20/31,277,061.42 = 12,351,698.60/x
3. Step 3: Cross multiply
   22,665,198.20x = 31,277,061.42 × 12,351,698.60
4. Step 4: Simplify right side
   22,665,198.20x = 386,324,835,753,528
5. Step 5: Solve for x
   x = 386,324,835,753,528/22,665,198.20
6. Step 6: Final answer
   x = 17,044,847.01