Finding the Fourth Proportional to 13,022.67, 17,971.27 and 7,054.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.67 : 17,971.27 = 7,054.49 : x
2. Step 2: Convert to fraction form
   13,022.67/17,971.27 = 7,054.49/x
3. Step 3: Cross multiply
   13,022.67x = 17,971.27 × 7,054.49
4. Step 4: Simplify right side
   13,022.67x = 126,778,171.79
5. Step 5: Solve for x
   x = 126,778,171.79/13,022.67
6. Step 6: Final answer
   x = 9,735.19