Finding the Fourth Proportional to 16,738.62, 25,091.97 and 5,639.59

Step by Step Solution

1. Step 1: Write the proportion equation
   16,738.62 : 25,091.97 = 5,639.59 : x
2. Step 2: Convert to fraction form
   16,738.62/25,091.97 = 5,639.59/x
3. Step 3: Cross multiply
   16,738.62x = 25,091.97 × 5,639.59
4. Step 4: Simplify right side
   16,738.62x = 141,508,423.09
5. Step 5: Solve for x
   x = 141,508,423.09/16,738.62
6. Step 6: Final answer
   x = 8,454.01