Finding the Fourth Proportional to 16,019.32, 22,107.90 and 9,307.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,019.32 : 22,107.90 = 9,307.12 : x
2. Step 2: Convert to fraction form
   16,019.32/22,107.90 = 9,307.12/x
3. Step 3: Cross multiply
   16,019.32x = 22,107.90 × 9,307.12
4. Step 4: Simplify right side
   16,019.32x = 205,760,878.25
5. Step 5: Solve for x
   x = 205,760,878.25/16,019.32
6. Step 6: Final answer
   x = 12,844.55