Finding the Fourth Proportional to 11,071.89, 16,584.42 and 8,954.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,071.89 : 16,584.42 = 8,954.43 : x
2. Step 2: Convert to fraction form
   11,071.89/16,584.42 = 8,954.43/x
3. Step 3: Cross multiply
   11,071.89x = 16,584.42 × 8,954.43
4. Step 4: Simplify right side
   11,071.89x = 148,504,027.98
5. Step 5: Solve for x
   x = 148,504,027.98/11,071.89
6. Step 6: Final answer
   x = 13,412.71