Finding the Fourth Proportional to 13,040.58, 17,995.90 and 7,072.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,040.58 : 17,995.90 = 7,072.24 : x
2. Step 2: Convert to fraction form
   13,040.58/17,995.90 = 7,072.24/x
3. Step 3: Cross multiply
   13,040.58x = 17,995.90 × 7,072.24
4. Step 4: Simplify right side
   13,040.58x = 127,271,323.82
5. Step 5: Solve for x
   x = 127,271,323.82/13,040.58
6. Step 6: Final answer
   x = 9,759.64