Finding the Fourth Proportional to 17,164.29, 25,747.61 and 5,478.39

Step by Step Solution

1. Step 1: Write the proportion equation
   17,164.29 : 25,747.61 = 5,478.39 : x
2. Step 2: Convert to fraction form
   17,164.29/25,747.61 = 5,478.39/x
3. Step 3: Cross multiply
   17,164.29x = 25,747.61 × 5,478.39
4. Step 4: Simplify right side
   17,164.29x = 141,055,421.76
5. Step 5: Solve for x
   x = 141,055,421.76/17,164.29
6. Step 6: Final answer
   x = 8,217.96