Finding the Fourth Proportional to 16,728.47, 25,075.12 and 5,631.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,728.47 : 25,075.12 = 5,631.31 : x
2. Step 2: Convert to fraction form
   16,728.47/25,075.12 = 5,631.31/x
3. Step 3: Cross multiply
   16,728.47x = 25,075.12 × 5,631.31
4. Step 4: Simplify right side
   16,728.47x = 141,205,774.01
5. Step 5: Solve for x
   x = 141,205,774.01/16,728.47
6. Step 6: Final answer
   x = 8,441.05