Finding the Fourth Proportional to 12,124.89, 18,188.59 and 3,359.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,124.89 : 18,188.59 = 3,359.80 : x
2. Step 2: Convert to fraction form
   12,124.89/18,188.59 = 3,359.80/x
3. Step 3: Cross multiply
   12,124.89x = 18,188.59 × 3,359.80
4. Step 4: Simplify right side
   12,124.89x = 61,110,024.68
5. Step 5: Solve for x
   x = 61,110,024.68/12,124.89
6. Step 6: Final answer
   x = 5,040.05