Finding the Fourth Proportional to 16,662.48, 24,994.20 and 7,429.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.48 : 24,994.20 = 7,429.20 : x
2. Step 2: Convert to fraction form
   16,662.48/24,994.20 = 7,429.20/x
3. Step 3: Cross multiply
   16,662.48x = 24,994.20 × 7,429.20
4. Step 4: Simplify right side
   16,662.48x = 185,686,910.64
5. Step 5: Solve for x
   x = 185,686,910.64/16,662.48
6. Step 6: Final answer
   x = 11,144.01