Finding the Fourth Proportional to 12,124.89, 18,187.29 and 3,359.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,124.89 : 18,187.29 = 3,359.78 : x
2. Step 2: Convert to fraction form
   12,124.89/18,187.29 = 3,359.78/x
3. Step 3: Cross multiply
   12,124.89x = 18,187.29 × 3,359.78
4. Step 4: Simplify right side
   12,124.89x = 61,105,338.66
5. Step 5: Solve for x
   x = 61,105,338.66/12,124.89
6. Step 6: Final answer
   x = 5,039.66