Finding the Fourth Proportional to 16,684.35, 25,009.09 and 5,581.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,684.35 : 25,009.09 = 5,581.91 : x
2. Step 2: Convert to fraction form
   16,684.35/25,009.09 = 5,581.91/x
3. Step 3: Cross multiply
   16,684.35x = 25,009.09 × 5,581.91
4. Step 4: Simplify right side
   16,684.35x = 139,598,364.52
5. Step 5: Solve for x
   x = 139,598,364.52/16,684.35
6. Step 6: Final answer
   x = 8,367.02