Finding the Fourth Proportional to 20,320.65, 30,483.02 and 5,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,320.65 : 30,483.02 = 5,530.72 : x
2. Step 2: Convert to fraction form
   20,320.65/30,483.02 = 5,530.72/x
3. Step 3: Cross multiply
   20,320.65x = 30,483.02 × 5,530.72
4. Step 4: Simplify right side
   20,320.65x = 168,592,992.50
5. Step 5: Solve for x
   x = 168,592,992.50/20,320.65
6. Step 6: Final answer
   x = 8,296.63