Finding the Fourth Proportional to 12,323.76, 18,480.15 and 3,556.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,323.76 : 18,480.15 = 3,556.59 : x
2. Step 2: Convert to fraction form
   12,323.76/18,480.15 = 3,556.59/x
3. Step 3: Cross multiply
   12,323.76x = 18,480.15 × 3,556.59
4. Step 4: Simplify right side
   12,323.76x = 65,726,316.69
5. Step 5: Solve for x
   x = 65,726,316.69/12,323.76
6. Step 6: Final answer
   x = 5,333.30