Finding the Fourth Proportional to 12,184.98, 18,280.23 and 3,865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,184.98 : 18,280.23 = 3,865.50 : x
2. Step 2: Convert to fraction form
   12,184.98/18,280.23 = 3,865.50/x
3. Step 3: Cross multiply
   12,184.98x = 18,280.23 × 3,865.50
4. Step 4: Simplify right side
   12,184.98x = 70,662,229.07
5. Step 5: Solve for x
   x = 70,662,229.07/12,184.98
6. Step 6: Final answer
   x = 5,799.13