Finding the Fourth Proportional to 16,436, 24,621.55 and 10,872.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,436 : 24,621.55 = 10,872.52 : x
2. Step 2: Convert to fraction form
   16,436/24,621.55 = 10,872.52/x
3. Step 3: Cross multiply
   16,436x = 24,621.55 × 10,872.52
4. Step 4: Simplify right side
   16,436x = 267,698,294.81
5. Step 5: Solve for x
   x = 267,698,294.81/16,436
6. Step 6: Final answer
   x = 16,287.31