Finding the Fourth Proportional to 16,289,896.98, 24,401,778.03 and 12,680,822.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,289,896.98 : 24,401,778.03 = 12,680,822.10 : x
2. Step 2: Convert to fraction form
   16,289,896.98/24,401,778.03 = 12,680,822.10/x
3. Step 3: Cross multiply
   16,289,896.98x = 24,401,778.03 × 12,680,822.10
4. Step 4: Simplify right side
   16,289,896.98x = 309,434,606,122,118.50
5. Step 5: Solve for x
   x = 309,434,606,122,118.50/16,289,896.98
6. Step 6: Final answer
   x = 18,995,491.90