Finding the Fourth Proportional to 12,642,297.94, 18,963,456.12 and 3,057,685.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,642,297.94 : 18,963,456.12 = 3,057,685.69 : x
2. Step 2: Convert to fraction form
   12,642,297.94/18,963,456.12 = 3,057,685.69/x
3. Step 3: Cross multiply
   12,642,297.94x = 18,963,456.12 × 3,057,685.69
4. Step 4: Simplify right side
   12,642,297.94x = 57,984,288,458,475.56
5. Step 5: Solve for x
   x = 57,984,288,458,475.56/12,642,297.94
6. Step 6: Final answer
   x = 4,586,530.77