Finding the Fourth Proportional to 16,931.92, 23,367.50 and 9,859

Step by Step Solution

1. Step 1: Write the proportion equation
   16,931.92 : 23,367.50 = 9,859 : x
2. Step 2: Convert to fraction form
   16,931.92/23,367.50 = 9,859/x
3. Step 3: Cross multiply
   16,931.92x = 23,367.50 × 9,859
4. Step 4: Simplify right side
   16,931.92x = 230,380,182.50
5. Step 5: Solve for x
   x = 230,380,182.50/16,931.92
6. Step 6: Final answer
   x = 13,606.26