Finding the Fourth Proportional to 22,347.28, 30,837.72 and 12,276.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,347.28 : 30,837.72 = 12,276.15 : x
2. Step 2: Convert to fraction form
   22,347.28/30,837.72 = 12,276.15/x
3. Step 3: Cross multiply
   22,347.28x = 30,837.72 × 12,276.15
4. Step 4: Simplify right side
   22,347.28x = 378,568,476.38
5. Step 5: Solve for x
   x = 378,568,476.38/22,347.28
6. Step 6: Final answer
   x = 16,940.25