Finding the Fourth Proportional to 16,533.81, 22,816.89 and 8,980.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,533.81 : 22,816.89 = 8,980.16 : x
2. Step 2: Convert to fraction form
   16,533.81/22,816.89 = 8,980.16/x
3. Step 3: Cross multiply
   16,533.81x = 22,816.89 × 8,980.16
4. Step 4: Simplify right side
   16,533.81x = 204,899,208.82
5. Step 5: Solve for x
   x = 204,899,208.82/16,533.81
6. Step 6: Final answer
   x = 12,392.74