Finding the Fourth Proportional to 16,091.37, 22,205.17 and 9,378.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,091.37 : 22,205.17 = 9,378.09 : x
2. Step 2: Convert to fraction form
   16,091.37/22,205.17 = 9,378.09/x
3. Step 3: Cross multiply
   16,091.37x = 22,205.17 × 9,378.09
4. Step 4: Simplify right side
   16,091.37x = 208,242,082.73
5. Step 5: Solve for x
   x = 208,242,082.73/16,091.37
6. Step 6: Final answer
   x = 12,941.23