Finding the Fourth Proportional to 16,831.59, 25,238.47 and 5,141.67

Step by Step Solution

1. Step 1: Write the proportion equation
   16,831.59 : 25,238.47 = 5,141.67 : x
2. Step 2: Convert to fraction form
   16,831.59/25,238.47 = 5,141.67/x
3. Step 3: Cross multiply
   16,831.59x = 25,238.47 × 5,141.67
4. Step 4: Simplify right side
   16,831.59x = 129,767,884.04
5. Step 5: Solve for x
   x = 129,767,884.04/16,831.59
6. Step 6: Final answer
   x = 7,709.78