Finding the Fourth Proportional to 20,597.67, 30,902.31 and 5,806.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,597.67 : 30,902.31 = 5,806.72 : x
2. Step 2: Convert to fraction form
   20,597.67/30,902.31 = 5,806.72/x
3. Step 3: Cross multiply
   20,597.67x = 30,902.31 × 5,806.72
4. Step 4: Simplify right side
   20,597.67x = 179,441,061.52
5. Step 5: Solve for x
   x = 179,441,061.52/20,597.67
6. Step 6: Final answer
   x = 8,711.72