Finding the Fourth Proportional to 12,863.49, 19,327.52 and 8,185.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,863.49 : 19,327.52 = 8,185.53 : x
2. Step 2: Convert to fraction form
   12,863.49/19,327.52 = 8,185.53/x
3. Step 3: Cross multiply
   12,863.49x = 19,327.52 × 8,185.53
4. Step 4: Simplify right side
   12,863.49x = 158,205,994.79
5. Step 5: Solve for x
   x = 158,205,994.79/12,863.49
6. Step 6: Final answer
   x = 12,298.84