Finding the Fourth Proportional to 12,849.16, 19,272.06 and 8,155.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,849.16 : 19,272.06 = 8,155.24 : x
2. Step 2: Convert to fraction form
   12,849.16/19,272.06 = 8,155.24/x
3. Step 3: Cross multiply
   12,849.16x = 19,272.06 × 8,155.24
4. Step 4: Simplify right side
   12,849.16x = 157,168,274.59
5. Step 5: Solve for x
   x = 157,168,274.59/12,849.16
6. Step 6: Final answer
   x = 12,231.79