Finding the Fourth Proportional to 19,648.26, 29,472.71 and 10,938.54

Step by Step Solution

1. Step 1: Write the proportion equation
   19,648.26 : 29,472.71 = 10,938.54 : x
2. Step 2: Convert to fraction form
   19,648.26/29,472.71 = 10,938.54/x
3. Step 3: Cross multiply
   19,648.26x = 29,472.71 × 10,938.54
4. Step 4: Simplify right side
   19,648.26x = 322,388,362.55
5. Step 5: Solve for x
   x = 322,388,362.55/19,648.26
6. Step 6: Final answer
   x = 16,407.99