Finding the Fourth Proportional to 12,815.48, 19,233.18 and 8,894.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,815.48 : 19,233.18 = 8,894.27 : x
2. Step 2: Convert to fraction form
   12,815.48/19,233.18 = 8,894.27/x
3. Step 3: Cross multiply
   12,815.48x = 19,233.18 × 8,894.27
4. Step 4: Simplify right side
   12,815.48x = 171,065,143.96
5. Step 5: Solve for x
   x = 171,065,143.96/12,815.48
6. Step 6: Final answer
   x = 13,348.32