Finding the Fourth Proportional to 16,844.71, 23,245.15 and 9,291.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,844.71 : 23,245.15 = 9,291.35 : x
2. Step 2: Convert to fraction form
   16,844.71/23,245.15 = 9,291.35/x
3. Step 3: Cross multiply
   16,844.71x = 23,245.15 × 9,291.35
4. Step 4: Simplify right side
   16,844.71x = 215,978,824.45
5. Step 5: Solve for x
   x = 215,978,824.45/16,844.71
6. Step 6: Final answer
   x = 12,821.76