Finding the Fourth Proportional to 20,445.59, 30,662.71 and 5,653.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,445.59 : 30,662.71 = 5,653.37 : x
2. Step 2: Convert to fraction form
   20,445.59/30,662.71 = 5,653.37/x
3. Step 3: Cross multiply
   20,445.59x = 30,662.71 × 5,653.37
4. Step 4: Simplify right side
   20,445.59x = 173,347,477.39
5. Step 5: Solve for x
   x = 173,347,477.39/20,445.59
6. Step 6: Final answer
   x = 8,478.48