Finding the Fourth Proportional to 16,770.79, 25,155.92 and 4,290.71

Step by Step Solution

1. Step 1: Write the proportion equation
   16,770.79 : 25,155.92 = 4,290.71 : x
2. Step 2: Convert to fraction form
   16,770.79/25,155.92 = 4,290.71/x
3. Step 3: Cross multiply
   16,770.79x = 25,155.92 × 4,290.71
4. Step 4: Simplify right side
   16,770.79x = 107,936,621.00
5. Step 5: Solve for x
   x = 107,936,621.00/16,770.79
6. Step 6: Final answer
   x = 6,435.99