Finding the Fourth Proportional to 12,895.94, 17,804.15 and 8,427.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,895.94 : 17,804.15 = 8,427.17 : x
2. Step 2: Convert to fraction form
   12,895.94/17,804.15 = 8,427.17/x
3. Step 3: Cross multiply
   12,895.94x = 17,804.15 × 8,427.17
4. Step 4: Simplify right side
   12,895.94x = 150,038,530.80
5. Step 5: Solve for x
   x = 150,038,530.80/12,895.94
6. Step 6: Final answer
   x = 11,634.56