Finding the Fourth Proportional to 16,986.50, 25,471.52 and 7,123.13

Step by Step Solution

1. Step 1: Write the proportion equation
   16,986.50 : 25,471.52 = 7,123.13 : x
2. Step 2: Convert to fraction form
   16,986.50/25,471.52 = 7,123.13/x
3. Step 3: Cross multiply
   16,986.50x = 25,471.52 × 7,123.13
4. Step 4: Simplify right side
   16,986.50x = 181,436,948.26
5. Step 5: Solve for x
   x = 181,436,948.26/16,986.50
6. Step 6: Final answer
   x = 10,681.24