Finding the Fourth Proportional to 13,022.73, 17,952.71 and 9,290.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.73 : 17,952.71 = 9,290.25 : x
2. Step 2: Convert to fraction form
   13,022.73/17,952.71 = 9,290.25/x
3. Step 3: Cross multiply
   13,022.73x = 17,952.71 × 9,290.25
4. Step 4: Simplify right side
   13,022.73x = 166,785,117.63
5. Step 5: Solve for x
   x = 166,785,117.63/13,022.73
6. Step 6: Final answer
   x = 12,807.23