Finding the Fourth Proportional to 16,828.79, 25,247.73 and 5,141.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,828.79 : 25,247.73 = 5,141.69 : x
2. Step 2: Convert to fraction form
   16,828.79/25,247.73 = 5,141.69/x
3. Step 3: Cross multiply
   16,828.79x = 25,247.73 × 5,141.69
4. Step 4: Simplify right side
   16,828.79x = 129,816,000.86
5. Step 5: Solve for x
   x = 129,816,000.86/16,828.79
6. Step 6: Final answer
   x = 7,713.92