Finding the Fourth Proportional to 21,962.83, 30,308.71 and 11,891.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,962.83 : 30,308.71 = 11,891.27 : x
2. Step 2: Convert to fraction form
   21,962.83/30,308.71 = 11,891.27/x
3. Step 3: Cross multiply
   21,962.83x = 30,308.71 × 11,891.27
4. Step 4: Simplify right side
   21,962.83x = 360,409,053.96
5. Step 5: Solve for x
   x = 360,409,053.96/21,962.83
6. Step 6: Final answer
   x = 16,409.96