Finding the Fourth Proportional to 16,419.24, 24,620.05 and 5,172.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,419.24 : 24,620.05 = 5,172.48 : x
2. Step 2: Convert to fraction form
   16,419.24/24,620.05 = 5,172.48/x
3. Step 3: Cross multiply
   16,419.24x = 24,620.05 × 5,172.48
4. Step 4: Simplify right side
   16,419.24x = 127,346,593.12
5. Step 5: Solve for x
   x = 127,346,593.12/16,419.24
6. Step 6: Final answer
   x = 7,755.94