Finding the Fourth Proportional to 12,184.07, 18,274.91 and 8,260.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,184.07 : 18,274.91 = 8,260.53 : x
2. Step 2: Convert to fraction form
   12,184.07/18,274.91 = 8,260.53/x
3. Step 3: Cross multiply
   12,184.07x = 18,274.91 × 8,260.53
4. Step 4: Simplify right side
   12,184.07x = 150,960,401.00
5. Step 5: Solve for x
   x = 150,960,401.00/12,184.07
6. Step 6: Final answer
   x = 12,389.99