Finding the Fourth Proportional to 8,212.32, 11,300.18 and 7,982.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,212.32 : 11,300.18 = 7,982.69 : x
2. Step 2: Convert to fraction form
   8,212.32/11,300.18 = 7,982.69/x
3. Step 3: Cross multiply
   8,212.32x = 11,300.18 × 7,982.69
4. Step 4: Simplify right side
   8,212.32x = 90,205,737.47
5. Step 5: Solve for x
   x = 90,205,737.47/8,212.32
6. Step 6: Final answer
   x = 10,984.20