Finding the Fourth Proportional to 20,483.82, 30,722.16 and 5,688.78

Step by Step Solution

1. Step 1: Write the proportion equation
   20,483.82 : 30,722.16 = 5,688.78 : x
2. Step 2: Convert to fraction form
   20,483.82/30,722.16 = 5,688.78/x
3. Step 3: Cross multiply
   20,483.82x = 30,722.16 × 5,688.78
4. Step 4: Simplify right side
   20,483.82x = 174,771,609.36
5. Step 5: Solve for x
   x = 174,771,609.36/20,483.82
6. Step 6: Final answer
   x = 8,532.18