Finding the Fourth Proportional to 19,908.05, 27,474.33 and 10,957.53

Step by Step Solution

1. Step 1: Write the proportion equation
   19,908.05 : 27,474.33 = 10,957.53 : x
2. Step 2: Convert to fraction form
   19,908.05/27,474.33 = 10,957.53/x
3. Step 3: Cross multiply
   19,908.05x = 27,474.33 × 10,957.53
4. Step 4: Simplify right side
   19,908.05x = 301,050,784.78
5. Step 5: Solve for x
   x = 301,050,784.78/19,908.05
6. Step 6: Final answer
   x = 15,122.06