Finding the Fourth Proportional to 12,309.83, 16,984.81 and 7,270.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,309.83 : 16,984.81 = 7,270.61 : x
2. Step 2: Convert to fraction form
   12,309.83/16,984.81 = 7,270.61/x
3. Step 3: Cross multiply
   12,309.83x = 16,984.81 × 7,270.61
4. Step 4: Simplify right side
   12,309.83x = 123,489,929.43
5. Step 5: Solve for x
   x = 123,489,929.43/12,309.83
6. Step 6: Final answer
   x = 10,031.81