Finding the Fourth Proportional to 20,389.89, 30,581.56 and 5,595.35

Step by Step Solution

1. Step 1: Write the proportion equation
   20,389.89 : 30,581.56 = 5,595.35 : x
2. Step 2: Convert to fraction form
   20,389.89/30,581.56 = 5,595.35/x
3. Step 3: Cross multiply
   20,389.89x = 30,581.56 × 5,595.35
4. Step 4: Simplify right side
   20,389.89x = 171,114,503.77
5. Step 5: Solve for x
   x = 171,114,503.77/20,389.89
6. Step 6: Final answer
   x = 8,392.12