Finding the Fourth Proportional to 10,906.96, 15,052.23 and 8,213.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,906.96 : 15,052.23 = 8,213.35 : x
2. Step 2: Convert to fraction form
   10,906.96/15,052.23 = 8,213.35/x
3. Step 3: Cross multiply
   10,906.96x = 15,052.23 × 8,213.35
4. Step 4: Simplify right side
   10,906.96x = 123,629,233.27
5. Step 5: Solve for x
   x = 123,629,233.27/10,906.96
6. Step 6: Final answer
   x = 11,334.90