Finding the Fourth Proportional to 16,111.62, 22,236.71 and 9,040.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,111.62 : 22,236.71 = 9,040.32 : x
2. Step 2: Convert to fraction form
   16,111.62/22,236.71 = 9,040.32/x
3. Step 3: Cross multiply
   16,111.62x = 22,236.71 × 9,040.32
4. Step 4: Simplify right side
   16,111.62x = 201,026,928.95
5. Step 5: Solve for x
   x = 201,026,928.95/16,111.62
6. Step 6: Final answer
   x = 12,477.14