Finding the Fourth Proportional to 12,097,408.10, 18,146,112.15 and 10,977,664.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,097,408.10 : 18,146,112.15 = 10,977,664.10 : x
2. Step 2: Convert to fraction form
   12,097,408.10/18,146,112.15 = 10,977,664.10/x
3. Step 3: Cross multiply
   12,097,408.10x = 18,146,112.15 × 10,977,664.10
4. Step 4: Simplify right side
   12,097,408.10x = 199,201,923,903,628.78
5. Step 5: Solve for x
   x = 199,201,923,903,628.78/12,097,408.10
6. Step 6: Final answer
   x = 16,466,496.15