Finding the Fourth Proportional to 13,022.76, 17,971.49 and 7,054.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.76 : 17,971.49 = 7,054.42 : x
2. Step 2: Convert to fraction form
   13,022.76/17,971.49 = 7,054.42/x
3. Step 3: Cross multiply
   13,022.76x = 17,971.49 × 7,054.42
4. Step 4: Simplify right side
   13,022.76x = 126,778,505.59
5. Step 5: Solve for x
   x = 126,778,505.59/13,022.76
6. Step 6: Final answer
   x = 9,735.15