Finding the Fourth Proportional to 16,618.42, 24,919.29 and 5,521.22

Step by Step Solution

1. Step 1: Write the proportion equation
   16,618.42 : 24,919.29 = 5,521.22 : x
2. Step 2: Convert to fraction form
   16,618.42/24,919.29 = 5,521.22/x
3. Step 3: Cross multiply
   16,618.42x = 24,919.29 × 5,521.22
4. Step 4: Simplify right side
   16,618.42x = 137,584,882.33
5. Step 5: Solve for x
   x = 137,584,882.33/16,618.42
6. Step 6: Final answer
   x = 8,279.06