Finding the Fourth Proportional to 12,331.72, 18,496.86 and 3,097

Step by Step Solution

1. Step 1: Write the proportion equation
   12,331.72 : 18,496.86 = 3,097 : x
2. Step 2: Convert to fraction form
   12,331.72/18,496.86 = 3,097/x
3. Step 3: Cross multiply
   12,331.72x = 18,496.86 × 3,097
4. Step 4: Simplify right side
   12,331.72x = 57,284,775.42
5. Step 5: Solve for x
   x = 57,284,775.42/12,331.72
6. Step 6: Final answer
   x = 4,645.32