Finding the Fourth Proportional to 10,812.06, 16,196.22 and 8,338.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,812.06 : 16,196.22 = 8,338.32 : x
2. Step 2: Convert to fraction form
   10,812.06/16,196.22 = 8,338.32/x
3. Step 3: Cross multiply
   10,812.06x = 16,196.22 × 8,338.32
4. Step 4: Simplify right side
   10,812.06x = 135,049,265.15
5. Step 5: Solve for x
   x = 135,049,265.15/10,812.06
6. Step 6: Final answer
   x = 12,490.61