Finding the Fourth Proportional to 16,899,162.78, 23,320,856.43 and 9,164,202.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,899,162.78 : 23,320,856.43 = 9,164,202.78 : x
2. Step 2: Convert to fraction form
   16,899,162.78/23,320,856.43 = 9,164,202.78/x
3. Step 3: Cross multiply
   16,899,162.78x = 23,320,856.43 × 9,164,202.78
4. Step 4: Simplify right side
   16,899,162.78x = 213,717,057,327,786.84
5. Step 5: Solve for x
   x = 213,717,057,327,786.84/16,899,162.78
6. Step 6: Final answer
   x = 12,646,606.23