Finding the Fourth Proportional to 16,471.56, 22,730.76 and 8,917.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,471.56 : 22,730.76 = 8,917.89 : x
2. Step 2: Convert to fraction form
   16,471.56/22,730.76 = 8,917.89/x
3. Step 3: Cross multiply
   16,471.56x = 22,730.76 × 8,917.89
4. Step 4: Simplify right side
   16,471.56x = 202,710,341.23
5. Step 5: Solve for x
   x = 202,710,341.23/16,471.56
6. Step 6: Final answer
   x = 12,306.69