Finding the Fourth Proportional to 13,231.69, 18,258.82 and 7,262.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,231.69 : 18,258.82 = 7,262.12 : x
2. Step 2: Convert to fraction form
   13,231.69/18,258.82 = 7,262.12/x
3. Step 3: Cross multiply
   13,231.69x = 18,258.82 × 7,262.12
4. Step 4: Simplify right side
   13,231.69x = 132,597,769.39
5. Step 5: Solve for x
   x = 132,597,769.39/13,231.69
6. Step 6: Final answer
   x = 10,021.23