Finding the Fourth Proportional to 16,705.94, 23,084.61 and 15,896.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,705.94 : 23,084.61 = 15,896.18 : x
2. Step 2: Convert to fraction form
   16,705.94/23,084.61 = 15,896.18/x
3. Step 3: Cross multiply
   16,705.94x = 23,084.61 × 15,896.18
4. Step 4: Simplify right side
   16,705.94x = 366,957,115.79
5. Step 5: Solve for x
   x = 366,957,115.79/16,705.94
6. Step 6: Final answer
   x = 21,965.67