Finding the Fourth Proportional to 16,021.91, 22,108.56 and 9,308.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,021.91 : 22,108.56 = 9,308.94 : x
2. Step 2: Convert to fraction form
   16,021.91/22,108.56 = 9,308.94/x
3. Step 3: Cross multiply
   16,021.91x = 22,108.56 × 9,308.94
4. Step 4: Simplify right side
   16,021.91x = 205,807,258.53
5. Step 5: Solve for x
   x = 205,807,258.53/16,021.91
6. Step 6: Final answer
   x = 12,845.37