Finding the Fourth Proportional to 10,982.43, 15,162.75 and 7,212.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,982.43 : 15,162.75 = 7,212.27 : x
2. Step 2: Convert to fraction form
   10,982.43/15,162.75 = 7,212.27/x
3. Step 3: Cross multiply
   10,982.43x = 15,162.75 × 7,212.27
4. Step 4: Simplify right side
   10,982.43x = 109,357,846.94
5. Step 5: Solve for x
   x = 109,357,846.94/10,982.43
6. Step 6: Final answer
   x = 9,957.53