Finding the Fourth Proportional to 19,900.42, 27,463.34 and 10,947.73

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900.42 : 27,463.34 = 10,947.73 : x
2. Step 2: Convert to fraction form
   19,900.42/27,463.34 = 10,947.73/x
3. Step 3: Cross multiply
   19,900.42x = 27,463.34 × 10,947.73
4. Step 4: Simplify right side
   19,900.42x = 300,661,231.22
5. Step 5: Solve for x
   x = 300,661,231.22/19,900.42
6. Step 6: Final answer
   x = 15,108.29