Finding the Fourth Proportional to 12,945.69, 19,412.46 and 5,923.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945.69 : 19,412.46 = 5,923.71 : x
2. Step 2: Convert to fraction form
   12,945.69/19,412.46 = 5,923.71/x
3. Step 3: Cross multiply
   12,945.69x = 19,412.46 × 5,923.71
4. Step 4: Simplify right side
   12,945.69x = 114,993,783.43
5. Step 5: Solve for x
   x = 114,993,783.43/12,945.69
6. Step 6: Final answer
   x = 8,882.79