Finding the Fourth Proportional to 20,461.82, 30,689.69 and 5,669.19

Step by Step Solution

1. Step 1: Write the proportion equation
   20,461.82 : 30,689.69 = 5,669.19 : x
2. Step 2: Convert to fraction form
   20,461.82/30,689.69 = 5,669.19/x
3. Step 3: Cross multiply
   20,461.82x = 30,689.69 × 5,669.19
4. Step 4: Simplify right side
   20,461.82x = 173,985,655.31
5. Step 5: Solve for x
   x = 173,985,655.31/20,461.82
6. Step 6: Final answer
   x = 8,502.94