Finding the Fourth Proportional to 16,638.21, 24,964.61 and 5,546.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638.21 : 24,964.61 = 5,546.48 : x
2. Step 2: Convert to fraction form
   16,638.21/24,964.61 = 5,546.48/x
3. Step 3: Cross multiply
   16,638.21x = 24,964.61 × 5,546.48
4. Step 4: Simplify right side
   16,638.21x = 138,465,557.52
5. Step 5: Solve for x
   x = 138,465,557.52/16,638.21
6. Step 6: Final answer
   x = 8,322.14