Finding the Fourth Proportional to 16,648.02, 22,976.31 and 9,479.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,648.02 : 22,976.31 = 9,479.70 : x
2. Step 2: Convert to fraction form
   16,648.02/22,976.31 = 9,479.70/x
3. Step 3: Cross multiply
   16,648.02x = 22,976.31 × 9,479.70
4. Step 4: Simplify right side
   16,648.02x = 217,808,525.91
5. Step 5: Solve for x
   x = 217,808,525.91/16,648.02
6. Step 6: Final answer
   x = 13,083.15