Finding the Fourth Proportional to 21,075.24, 31,629.72 and 10,544.84

Step by Step Solution

1. Step 1: Write the proportion equation
   21,075.24 : 31,629.72 = 10,544.84 : x
2. Step 2: Convert to fraction form
   21,075.24/31,629.72 = 10,544.84/x
3. Step 3: Cross multiply
   21,075.24x = 31,629.72 × 10,544.84
4. Step 4: Simplify right side
   21,075.24x = 333,530,336.64
5. Step 5: Solve for x
   x = 333,530,336.64/21,075.24
6. Step 6: Final answer
   x = 15,825.70