Finding the Fourth Proportional to 16,736.82, 25,087.71 and 5,639.67

Step by Step Solution

1. Step 1: Write the proportion equation
   16,736.82 : 25,087.71 = 5,639.67 : x
2. Step 2: Convert to fraction form
   16,736.82/25,087.71 = 5,639.67/x
3. Step 3: Cross multiply
   16,736.82x = 25,087.71 × 5,639.67
4. Step 4: Simplify right side
   16,736.82x = 141,486,405.46
5. Step 5: Solve for x
   x = 141,486,405.46/16,736.82
6. Step 6: Final answer
   x = 8,453.60