Finding the Fourth Proportional to 21,093.52, 31,629.60 and 7,048.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,093.52 : 31,629.60 = 7,048.54 : x
2. Step 2: Convert to fraction form
   21,093.52/31,629.60 = 7,048.54/x
3. Step 3: Cross multiply
   21,093.52x = 31,629.60 × 7,048.54
4. Step 4: Simplify right side
   21,093.52x = 222,942,500.78
5. Step 5: Solve for x
   x = 222,942,500.78/21,093.52
6. Step 6: Final answer
   x = 10,569.24