Finding the Fourth Proportional to 6,369,198.72, 8,789,433.76 and 3,468,638

Step by Step Solution

1. Step 1: Write the proportion equation
   6,369,198.72 : 8,789,433.76 = 3,468,638 : x
2. Step 2: Convert to fraction form
   6,369,198.72/8,789,433.76 = 3,468,638/x
3. Step 3: Cross multiply
   6,369,198.72x = 8,789,433.76 × 3,468,638
4. Step 4: Simplify right side
   6,369,198.72x = 30,487,363,938,418.88
5. Step 5: Solve for x
   x = 30,487,363,938,418.88/6,369,198.72
6. Step 6: Final answer
   x = 4,786,687.51