Finding the Fourth Proportional to 19,900.38, 27,462.11 and 10,947.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900.38 : 27,462.11 = 10,947.72 : x
2. Step 2: Convert to fraction form
   19,900.38/27,462.11 = 10,947.72/x
3. Step 3: Cross multiply
   19,900.38x = 27,462.11 × 10,947.72
4. Step 4: Simplify right side
   19,900.38x = 300,647,436.15
5. Step 5: Solve for x
   x = 300,647,436.15/19,900.38
6. Step 6: Final answer
   x = 15,107.62