Finding the Fourth Proportional to 13,019.34, 17,968.47 and 7,982.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.34 : 17,968.47 = 7,982.67 : x
2. Step 2: Convert to fraction form
   13,019.34/17,968.47 = 7,982.67/x
3. Step 3: Cross multiply
   13,019.34x = 17,968.47 × 7,982.67
4. Step 4: Simplify right side
   13,019.34x = 143,436,366.41
5. Step 5: Solve for x
   x = 143,436,366.41/13,019.34
6. Step 6: Final answer
   x = 11,017.18