Finding the Fourth Proportional to 13,851.60, 19,103.16 and 9,004.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,851.60 : 19,103.16 = 9,004.28 : x
2. Step 2: Convert to fraction form
   13,851.60/19,103.16 = 9,004.28/x
3. Step 3: Cross multiply
   13,851.60x = 19,103.16 × 9,004.28
4. Step 4: Simplify right side
   13,851.60x = 172,010,215.52
5. Step 5: Solve for x
   x = 172,010,215.52/13,851.60
6. Step 6: Final answer
   x = 12,418.07