Finding the Fourth Proportional to 12,273.89, 18,410.47 and 3,389.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,273.89 : 18,410.47 = 3,389.76 : x
2. Step 2: Convert to fraction form
   12,273.89/18,410.47 = 3,389.76/x
3. Step 3: Cross multiply
   12,273.89x = 18,410.47 × 3,389.76
4. Step 4: Simplify right side
   12,273.89x = 62,407,066.31
5. Step 5: Solve for x
   x = 62,407,066.31/12,273.89
6. Step 6: Final answer
   x = 5,084.54