Finding the Fourth Proportional to 13,017.90, 17,964.61 and 7,049.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,017.90 : 17,964.61 = 7,049.49 : x
2. Step 2: Convert to fraction form
   13,017.90/17,964.61 = 7,049.49/x
3. Step 3: Cross multiply
   13,017.90x = 17,964.61 × 7,049.49
4. Step 4: Simplify right side
   13,017.90x = 126,641,338.55
5. Step 5: Solve for x
   x = 126,641,338.55/13,017.90
6. Step 6: Final answer
   x = 9,728.25