Finding the Fourth Proportional to 20,396.37, 28,062.69 and 16,533.57

Step by Step Solution

1. Step 1: Write the proportion equation
   20,396.37 : 28,062.69 = 16,533.57 : x
2. Step 2: Convert to fraction form
   20,396.37/28,062.69 = 16,533.57/x
3. Step 3: Cross multiply
   20,396.37x = 28,062.69 × 16,533.57
4. Step 4: Simplify right side
   20,396.37x = 463,976,449.50
5. Step 5: Solve for x
   x = 463,976,449.50/20,396.37
6. Step 6: Final answer
   x = 22,747.99