Finding the Fourth Proportional to 16,770.69, 25,155.96 and 4,290.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,770.69 : 25,155.96 = 4,290.69 : x
2. Step 2: Convert to fraction form
   16,770.69/25,155.96 = 4,290.69/x
3. Step 3: Cross multiply
   16,770.69x = 25,155.96 × 4,290.69
4. Step 4: Simplify right side
   16,770.69x = 107,936,426.01
5. Step 5: Solve for x
   x = 107,936,426.01/16,770.69
6. Step 6: Final answer
   x = 6,436.02