Finding the Fourth Proportional to 16,285.56, 22,475.15 and 9,116.13

Step by Step Solution

1. Step 1: Write the proportion equation
   16,285.56 : 22,475.15 = 9,116.13 : x
2. Step 2: Convert to fraction form
   16,285.56/22,475.15 = 9,116.13/x
3. Step 3: Cross multiply
   16,285.56x = 22,475.15 × 9,116.13
4. Step 4: Simplify right side
   16,285.56x = 204,886,343.59
5. Step 5: Solve for x
   x = 204,886,343.59/16,285.56
6. Step 6: Final answer
   x = 12,580.86