Finding the Fourth Proportional to 16,291.91, 22,476.15 and 9,913.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,291.91 : 22,476.15 = 9,913.39 : x
2. Step 2: Convert to fraction form
   16,291.91/22,476.15 = 9,913.39/x
3. Step 3: Cross multiply
   16,291.91x = 22,476.15 × 9,913.39
4. Step 4: Simplify right side
   16,291.91x = 222,814,784.46
5. Step 5: Solve for x
   x = 222,814,784.46/16,291.91
6. Step 6: Final answer
   x = 13,676.40