Finding the Fourth Proportional to 20,404.66, 30,606.63 and 5,613.52

Step by Step Solution

1. Step 1: Write the proportion equation
   20,404.66 : 30,606.63 = 5,613.52 : x
2. Step 2: Convert to fraction form
   20,404.66/30,606.63 = 5,613.52/x
3. Step 3: Cross multiply
   20,404.66x = 30,606.63 × 5,613.52
4. Step 4: Simplify right side
   20,404.66x = 171,810,929.64
5. Step 5: Solve for x
   x = 171,810,929.64/20,404.66
6. Step 6: Final answer
   x = 8,420.18