Finding the Fourth Proportional to 10,994.79, 16,466.67 and 10,912.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,994.79 : 16,466.67 = 10,912.85 : x
2. Step 2: Convert to fraction form
   10,994.79/16,466.67 = 10,912.85/x
3. Step 3: Cross multiply
   10,994.79x = 16,466.67 × 10,912.85
4. Step 4: Simplify right side
   10,994.79x = 179,698,217.38
5. Step 5: Solve for x
   x = 179,698,217.38/10,994.79
6. Step 6: Final answer
   x = 16,343.94