Finding the Fourth Proportional to 16,646.81, 24,969.59 and 4,959.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,646.81 : 24,969.59 = 4,959.72 : x
2. Step 2: Convert to fraction form
   16,646.81/24,969.59 = 4,959.72/x
3. Step 3: Cross multiply
   16,646.81x = 24,969.59 × 4,959.72
4. Step 4: Simplify right side
   16,646.81x = 123,842,150.12
5. Step 5: Solve for x
   x = 123,842,150.12/16,646.81
6. Step 6: Final answer
   x = 7,439.39