Finding the Fourth Proportional to 12,266,044.10, 18,399,066.15 and 8,486,908.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,266,044.10 : 18,399,066.15 = 8,486,908.10 : x
2. Step 2: Convert to fraction form
   12,266,044.10/18,399,066.15 = 8,486,908.10/x
3. Step 3: Cross multiply
   12,266,044.10x = 18,399,066.15 × 8,486,908.10
4. Step 4: Simplify right side
   12,266,044.10x = 156,151,183,540,870.78
5. Step 5: Solve for x
   x = 156,151,183,540,870.78/12,266,044.10
6. Step 6: Final answer
   x = 12,730,362.15