Finding the Fourth Proportional to 16,091.82, 22,205.80 and 9,378.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,091.82 : 22,205.80 = 9,378.54 : x
2. Step 2: Convert to fraction form
   16,091.82/22,205.80 = 9,378.54/x
3. Step 3: Cross multiply
   16,091.82x = 22,205.80 × 9,378.54
4. Step 4: Simplify right side
   16,091.82x = 208,257,983.53
5. Step 5: Solve for x
   x = 208,257,983.53/16,091.82
6. Step 6: Final answer
   x = 12,941.85