Finding the Fourth Proportional to 12,443.39, 17,113.03 and 9,895.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.39 : 17,113.03 = 9,895.53 : x
2. Step 2: Convert to fraction form
   12,443.39/17,113.03 = 9,895.53/x
3. Step 3: Cross multiply
   12,443.39x = 17,113.03 × 9,895.53
4. Step 4: Simplify right side
   12,443.39x = 169,342,501.76
5. Step 5: Solve for x
   x = 169,342,501.76/12,443.39
6. Step 6: Final answer
   x = 13,609.03