Finding the Fourth Proportional to 16,145.77, 24,217.99 and 5,618.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,145.77 : 24,217.99 = 5,618.20 : x
2. Step 2: Convert to fraction form
   16,145.77/24,217.99 = 5,618.20/x
3. Step 3: Cross multiply
   16,145.77x = 24,217.99 × 5,618.20
4. Step 4: Simplify right side
   16,145.77x = 136,061,390.33
5. Step 5: Solve for x
   x = 136,061,390.33/16,145.77
6. Step 6: Final answer
   x = 8,427.06