Finding the Fourth Proportional to 16,436.16, 22,680.72 and 10,148.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,436.16 : 22,680.72 = 10,148.64 : x
2. Step 2: Convert to fraction form
   16,436.16/22,680.72 = 10,148.64/x
3. Step 3: Cross multiply
   16,436.16x = 22,680.72 × 10,148.64
4. Step 4: Simplify right side
   16,436.16x = 230,178,462.22
5. Step 5: Solve for x
   x = 230,178,462.22/16,436.16
6. Step 6: Final answer
   x = 14,004.39