Finding the Fourth Proportional to 13,969.41, 19,278.49 and 8,665.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,969.41 : 19,278.49 = 8,665.94 : x
2. Step 2: Convert to fraction form
   13,969.41/19,278.49 = 8,665.94/x
3. Step 3: Cross multiply
   13,969.41x = 19,278.49 × 8,665.94
4. Step 4: Simplify right side
   13,969.41x = 167,066,171.97
5. Step 5: Solve for x
   x = 167,066,171.97/13,969.41
6. Step 6: Final answer
   x = 11,959.43