Finding the Fourth Proportional to 16,007.72, 24,013.80 and 5,620.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,007.72 : 24,013.80 = 5,620.28 : x
2. Step 2: Convert to fraction form
   16,007.72/24,013.80 = 5,620.28/x
3. Step 3: Cross multiply
   16,007.72x = 24,013.80 × 5,620.28
4. Step 4: Simplify right side
   16,007.72x = 134,964,279.86
5. Step 5: Solve for x
   x = 134,964,279.86/16,007.72
6. Step 6: Final answer
   x = 8,431.20