Finding the Fourth Proportional to 10,983.43, 15,164.12 and 7,213.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.43 : 15,164.12 = 7,213.29 : x
2. Step 2: Convert to fraction form
   10,983.43/15,164.12 = 7,213.29/x
3. Step 3: Cross multiply
   10,983.43x = 15,164.12 × 7,213.29
4. Step 4: Simplify right side
   10,983.43x = 109,383,195.15
5. Step 5: Solve for x
   x = 109,383,195.15/10,983.43
6. Step 6: Final answer
   x = 9,958.93