Finding the Fourth Proportional to 16,470.31, 22,719.80 and 9,749.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,470.31 : 22,719.80 = 9,749.38 : x
2. Step 2: Convert to fraction form
   16,470.31/22,719.80 = 9,749.38/x
3. Step 3: Cross multiply
   16,470.31x = 22,719.80 × 9,749.38
4. Step 4: Simplify right side
   16,470.31x = 221,504,059.10
5. Step 5: Solve for x
   x = 221,504,059.10/16,470.31
6. Step 6: Final answer
   x = 13,448.69