Finding the Fourth Proportional to 16,885.69, 25,333.55 and 5,039.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,885.69 : 25,333.55 = 5,039.78 : x
2. Step 2: Convert to fraction form
   16,885.69/25,333.55 = 5,039.78/x
3. Step 3: Cross multiply
   16,885.69x = 25,333.55 × 5,039.78
4. Step 4: Simplify right side
   16,885.69x = 127,675,556.69
5. Step 5: Solve for x
   x = 127,675,556.69/16,885.69
6. Step 6: Final answer
   x = 7,561.17