Finding the Fourth Proportional to 16,717.12, 25,086.56 and 7,238.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,717.12 : 25,086.56 = 7,238.70 : x
2. Step 2: Convert to fraction form
   16,717.12/25,086.56 = 7,238.70/x
3. Step 3: Cross multiply
   16,717.12x = 25,086.56 × 7,238.70
4. Step 4: Simplify right side
   16,717.12x = 181,594,081.87
5. Step 5: Solve for x
   x = 181,594,081.87/16,717.12
6. Step 6: Final answer
   x = 10,862.76