Finding the Fourth Proportional to 12,204.50, 18,308.66 and 3,886.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,204.50 : 18,308.66 = 3,886.38 : x
2. Step 2: Convert to fraction form
   12,204.50/18,308.66 = 3,886.38/x
3. Step 3: Cross multiply
   12,204.50x = 18,308.66 × 3,886.38
4. Step 4: Simplify right side
   12,204.50x = 71,154,415.07
5. Step 5: Solve for x
   x = 71,154,415.07/12,204.50
6. Step 6: Final answer
   x = 5,830.18