Finding the Fourth Proportional to 16,238.00, 22,396.61 and 12,418.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,238.00 : 22,396.61 = 12,418.27 : x
2. Step 2: Convert to fraction form
   16,238.00/22,396.61 = 12,418.27/x
3. Step 3: Cross multiply
   16,238.00x = 22,396.61 × 12,418.27
4. Step 4: Simplify right side
   16,238.00x = 278,127,125.12
5. Step 5: Solve for x
   x = 278,127,125.12/16,238.00
6. Step 6: Final answer
   x = 17,128.16