Finding the Fourth Proportional to 12,894.24, 19,308.69 and 10,808.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,894.24 : 19,308.69 = 10,808.76 : x
2. Step 2: Convert to fraction form
   12,894.24/19,308.69 = 10,808.76/x
3. Step 3: Cross multiply
   12,894.24x = 19,308.69 × 10,808.76
4. Step 4: Simplify right side
   12,894.24x = 208,702,996.12
5. Step 5: Solve for x
   x = 208,702,996.12/12,894.24
6. Step 6: Final answer
   x = 16,185.75