Finding the Fourth Proportional to 12,443.82, 17,188.83 and 9,294.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.82 : 17,188.83 = 9,294.54 : x
2. Step 2: Convert to fraction form
   12,443.82/17,188.83 = 9,294.54/x
3. Step 3: Cross multiply
   12,443.82x = 17,188.83 × 9,294.54
4. Step 4: Simplify right side
   12,443.82x = 159,762,267.99
5. Step 5: Solve for x
   x = 159,762,267.99/12,443.82
6. Step 6: Final answer
   x = 12,838.68