Finding the Fourth Proportional to 16,764.89, 23,136.07 and 9,211.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,764.89 : 23,136.07 = 9,211.46 : x
2. Step 2: Convert to fraction form
   16,764.89/23,136.07 = 9,211.46/x
3. Step 3: Cross multiply
   16,764.89x = 23,136.07 × 9,211.46
4. Step 4: Simplify right side
   16,764.89x = 213,116,873.37
5. Step 5: Solve for x
   x = 213,116,873.37/16,764.89
6. Step 6: Final answer
   x = 12,712.09