Finding the Fourth Proportional to 12,885.29, 19,309.71 and 5,482.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,885.29 : 19,309.71 = 5,482.29 : x
2. Step 2: Convert to fraction form
   12,885.29/19,309.71 = 5,482.29/x
3. Step 3: Cross multiply
   12,885.29x = 19,309.71 × 5,482.29
4. Step 4: Simplify right side
   12,885.29x = 105,861,481.89
5. Step 5: Solve for x
   x = 105,861,481.89/12,885.29
6. Step 6: Final answer
   x = 8,215.69