Finding the Fourth Proportional to 12,171,731.72, 16,797,196.24 and 6,665,018.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,171,731.72 : 16,797,196.24 = 6,665,018.80 : x
2. Step 2: Convert to fraction form
   12,171,731.72/16,797,196.24 = 6,665,018.80/x
3. Step 3: Cross multiply
   12,171,731.72x = 16,797,196.24 × 6,665,018.80
4. Step 4: Simplify right side
   12,171,731.72x = 111,953,628,726,889.30
5. Step 5: Solve for x
   x = 111,953,628,726,889.30/12,171,731.72
6. Step 6: Final answer
   x = 9,197,839.00