Finding the Fourth Proportional to 16,470.50, 22,729.56 and 9,400.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,470.50 : 22,729.56 = 9,400.82 : x
2. Step 2: Convert to fraction form
   16,470.50/22,729.56 = 9,400.82/x
3. Step 3: Cross multiply
   16,470.50x = 22,729.56 × 9,400.82
4. Step 4: Simplify right side
   16,470.50x = 213,676,502.24
5. Step 5: Solve for x
   x = 213,676,502.24/16,470.50
6. Step 6: Final answer
   x = 12,973.29