Finding the Fourth Proportional to 16,385.22, 24,598.56 and 13,645.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,385.22 : 24,598.56 = 13,645.38 : x
2. Step 2: Convert to fraction form
   16,385.22/24,598.56 = 13,645.38/x
3. Step 3: Cross multiply
   16,385.22x = 24,598.56 × 13,645.38
4. Step 4: Simplify right side
   16,385.22x = 335,656,698.65
5. Step 5: Solve for x
   x = 335,656,698.65/16,385.22
6. Step 6: Final answer
   x = 20,485.33