Finding the Fourth Proportional to 16,684.72, 23,023.90 and 9,513.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,684.72 : 23,023.90 = 9,513.63 : x
2. Step 2: Convert to fraction form
   16,684.72/23,023.90 = 9,513.63/x
3. Step 3: Cross multiply
   16,684.72x = 23,023.90 × 9,513.63
4. Step 4: Simplify right side
   16,684.72x = 219,040,865.76
5. Step 5: Solve for x
   x = 219,040,865.76/16,684.72
6. Step 6: Final answer
   x = 13,128.23