Finding the Fourth Proportional to 20,399.37, 30,591.72 and 7,068.76

Step by Step Solution

1. Step 1: Write the proportion equation
   20,399.37 : 30,591.72 = 7,068.76 : x
2. Step 2: Convert to fraction form
   20,399.37/30,591.72 = 7,068.76/x
3. Step 3: Cross multiply
   20,399.37x = 30,591.72 × 7,068.76
4. Step 4: Simplify right side
   20,399.37x = 216,245,526.67
5. Step 5: Solve for x
   x = 216,245,526.67/20,399.37
6. Step 6: Final answer
   x = 10,600.60