Finding the Fourth Proportional to 12,093.75, 18,139.82 and 3,328.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,093.75 : 18,139.82 = 3,328.74 : x
2. Step 2: Convert to fraction form
   12,093.75/18,139.82 = 3,328.74/x
3. Step 3: Cross multiply
   12,093.75x = 18,139.82 × 3,328.74
4. Step 4: Simplify right side
   12,093.75x = 60,382,727.78
5. Step 5: Solve for x
   x = 60,382,727.78/12,093.75
6. Step 6: Final answer
   x = 4,992.89