Finding the Fourth Proportional to 20,388.52, 30,579.13 and 5,595.49

Step by Step Solution

1. Step 1: Write the proportion equation
   20,388.52 : 30,579.13 = 5,595.49 : x
2. Step 2: Convert to fraction form
   20,388.52/30,579.13 = 5,595.49/x
3. Step 3: Cross multiply
   20,388.52x = 30,579.13 × 5,595.49
4. Step 4: Simplify right side
   20,388.52x = 171,105,216.12
5. Step 5: Solve for x
   x = 171,105,216.12/20,388.52
6. Step 6: Final answer
   x = 8,392.23