Finding the Fourth Proportional to 16,986.56, 23,452.88 and 13,000.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,986.56 : 23,452.88 = 13,000.56 : x
2. Step 2: Convert to fraction form
   16,986.56/23,452.88 = 13,000.56/x
3. Step 3: Cross multiply
   16,986.56x = 23,452.88 × 13,000.56
4. Step 4: Simplify right side
   16,986.56x = 304,900,573.61
5. Step 5: Solve for x
   x = 304,900,573.61/16,986.56
6. Step 6: Final answer
   x = 17,949.52