Finding the Fourth Proportional to 12,447.56, 17,153.98 and 8,904.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,447.56 : 17,153.98 = 8,904.62 : x
2. Step 2: Convert to fraction form
   12,447.56/17,153.98 = 8,904.62/x
3. Step 3: Cross multiply
   12,447.56x = 17,153.98 × 8,904.62
4. Step 4: Simplify right side
   12,447.56x = 152,749,673.39
5. Step 5: Solve for x
   x = 152,749,673.39/12,447.56
6. Step 6: Final answer
   x = 12,271.46