Finding the Fourth Proportional to 16,854.78, 23,258.61 and 9,301.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,854.78 : 23,258.61 = 9,301.09 : x
2. Step 2: Convert to fraction form
   16,854.78/23,258.61 = 9,301.09/x
3. Step 3: Cross multiply
   16,854.78x = 23,258.61 × 9,301.09
4. Step 4: Simplify right side
   16,854.78x = 216,330,262.09
5. Step 5: Solve for x
   x = 216,330,262.09/16,854.78
6. Step 6: Final answer
   x = 12,834.95