Finding the Fourth Proportional to 13,029.81, 17,981.09 and 7,061.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,029.81 : 17,981.09 = 7,061.63 : x
2. Step 2: Convert to fraction form
   13,029.81/17,981.09 = 7,061.63/x
3. Step 3: Cross multiply
   13,029.81x = 17,981.09 × 7,061.63
4. Step 4: Simplify right side
   13,029.81x = 126,975,732.33
5. Step 5: Solve for x
   x = 126,975,732.33/13,029.81
6. Step 6: Final answer
   x = 9,745.02