Finding the Fourth Proportional to 19,912.84, 27,479.50 and 10,960.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,912.84 : 27,479.50 = 10,960.15 : x
2. Step 2: Convert to fraction form
   19,912.84/27,479.50 = 10,960.15/x
3. Step 3: Cross multiply
   19,912.84x = 27,479.50 × 10,960.15
4. Step 4: Simplify right side
   19,912.84x = 301,179,441.93
5. Step 5: Solve for x
   x = 301,179,441.93/19,912.84
6. Step 6: Final answer
   x = 15,124.89