Finding the Fourth Proportional to 16,013.57, 23,915.22 and 13,648.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,013.57 : 23,915.22 = 13,648.37 : x
2. Step 2: Convert to fraction form
   16,013.57/23,915.22 = 13,648.37/x
3. Step 3: Cross multiply
   16,013.57x = 23,915.22 × 13,648.37
4. Step 4: Simplify right side
   16,013.57x = 326,403,805.31
5. Step 5: Solve for x
   x = 326,403,805.31/16,013.57
6. Step 6: Final answer
   x = 20,382.95