Finding the Fourth Proportional to 13,017.89, 17,964.70 and 7,049.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,017.89 : 17,964.70 = 7,049.57 : x
2. Step 2: Convert to fraction form
   13,017.89/17,964.70 = 7,049.57/x
3. Step 3: Cross multiply
   13,017.89x = 17,964.70 × 7,049.57
4. Step 4: Simplify right side
   13,017.89x = 126,643,382.89
5. Step 5: Solve for x
   x = 126,643,382.89/13,017.89
6. Step 6: Final answer
   x = 9,728.41