Finding the Fourth Proportional to 12,401.12, 18,627.11 and 8,190.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,401.12 : 18,627.11 = 8,190.59 : x
2. Step 2: Convert to fraction form
   12,401.12/18,627.11 = 8,190.59/x
3. Step 3: Cross multiply
   12,401.12x = 18,627.11 × 8,190.59
4. Step 4: Simplify right side
   12,401.12x = 152,566,963.59
5. Step 5: Solve for x
   x = 152,566,963.59/12,401.12
6. Step 6: Final answer
   x = 12,302.68