Finding the Fourth Proportional to 13,006.72, 17,949.21 and 7,038.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,006.72 : 17,949.21 = 7,038.38 : x
2. Step 2: Convert to fraction form
   13,006.72/17,949.21 = 7,038.38/x
3. Step 3: Cross multiply
   13,006.72x = 17,949.21 × 7,038.38
4. Step 4: Simplify right side
   13,006.72x = 126,333,379.16
5. Step 5: Solve for x
   x = 126,333,379.16/13,006.72
6. Step 6: Final answer
   x = 9,712.93