Finding the Fourth Proportional to 16,711.47, 23,062.32 and 9,158.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,711.47 : 23,062.32 = 9,158.46 : x
2. Step 2: Convert to fraction form
   16,711.47/23,062.32 = 9,158.46/x
3. Step 3: Cross multiply
   16,711.47x = 23,062.32 × 9,158.46
4. Step 4: Simplify right side
   16,711.47x = 211,215,335.23
5. Step 5: Solve for x
   x = 211,215,335.23/16,711.47
6. Step 6: Final answer
   x = 12,638.94