Finding the Fourth Proportional to 16,786.30, 23,166.30 and 10,071.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,786.30 : 23,166.30 = 10,071.76 : x
2. Step 2: Convert to fraction form
   16,786.30/23,166.30 = 10,071.76/x
3. Step 3: Cross multiply
   16,786.30x = 23,166.30 × 10,071.76
4. Step 4: Simplify right side
   16,786.30x = 233,325,413.69
5. Step 5: Solve for x
   x = 233,325,413.69/16,786.30
6. Step 6: Final answer
   x = 13,899.75