Finding the Fourth Proportional to 19,815.94, 27,348.78 and 12,264.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,815.94 : 27,348.78 = 12,264.69 : x
2. Step 2: Convert to fraction form
   19,815.94/27,348.78 = 12,264.69/x
3. Step 3: Cross multiply
   19,815.94x = 27,348.78 × 12,264.69
4. Step 4: Simplify right side
   19,815.94x = 335,424,308.58
5. Step 5: Solve for x
   x = 335,424,308.58/19,815.94
6. Step 6: Final answer
   x = 16,926.99