Finding the Fourth Proportional to 16,980.54, 23,434.31 and 9,811.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,980.54 : 23,434.31 = 9,811.73 : x
2. Step 2: Convert to fraction form
   16,980.54/23,434.31 = 9,811.73/x
3. Step 3: Cross multiply
   16,980.54x = 23,434.31 × 9,811.73
4. Step 4: Simplify right side
   16,980.54x = 229,931,205.57
5. Step 5: Solve for x
   x = 229,931,205.57/16,980.54
6. Step 6: Final answer
   x = 13,540.87