Finding the Fourth Proportional to 16,984.47, 25,443.57 and 11,123.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,984.47 : 25,443.57 = 11,123.31 : x
2. Step 2: Convert to fraction form
   16,984.47/25,443.57 = 11,123.31/x
3. Step 3: Cross multiply
   16,984.47x = 25,443.57 × 11,123.31
4. Step 4: Simplify right side
   16,984.47x = 283,016,716.62
5. Step 5: Solve for x
   x = 283,016,716.62/16,984.47
6. Step 6: Final answer
   x = 16,663.26