Finding the Fourth Proportional to 20,453.05, 30,676.15 and 5,663.46

Step by Step Solution

1. Step 1: Write the proportion equation
   20,453.05 : 30,676.15 = 5,663.46 : x
2. Step 2: Convert to fraction form
   20,453.05/30,676.15 = 5,663.46/x
3. Step 3: Cross multiply
   20,453.05x = 30,676.15 × 5,663.46
4. Step 4: Simplify right side
   20,453.05x = 173,733,098.04
5. Step 5: Solve for x
   x = 173,733,098.04/20,453.05
6. Step 6: Final answer
   x = 8,494.24