Finding the Fourth Proportional to 12,446.55, 17,152.61 and 8,903.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,446.55 : 17,152.61 = 8,903.61 : x
2. Step 2: Convert to fraction form
   12,446.55/17,152.61 = 8,903.61/x
3. Step 3: Cross multiply
   12,446.55x = 17,152.61 × 8,903.61
4. Step 4: Simplify right side
   12,446.55x = 152,720,149.92
5. Step 5: Solve for x
   x = 152,720,149.92/12,446.55
6. Step 6: Final answer
   x = 12,270.08