Finding the Fourth Proportional to 16,480.56, 22,743.54 and 9,406.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,480.56 : 22,743.54 = 9,406.84 : x
2. Step 2: Convert to fraction form
   16,480.56/22,743.54 = 9,406.84/x
3. Step 3: Cross multiply
   16,480.56x = 22,743.54 × 9,406.84
4. Step 4: Simplify right side
   16,480.56x = 213,944,841.81
5. Step 5: Solve for x
   x = 213,944,841.81/16,480.56
6. Step 6: Final answer
   x = 12,981.65