Finding the Fourth Proportional to 12,093.55, 18,139.85 and 3,328.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,093.55 : 18,139.85 = 3,328.22 : x
2. Step 2: Convert to fraction form
   12,093.55/18,139.85 = 3,328.22/x
3. Step 3: Cross multiply
   12,093.55x = 18,139.85 × 3,328.22
4. Step 4: Simplify right side
   12,093.55x = 60,373,394.93
5. Step 5: Solve for x
   x = 60,373,394.93/12,093.55
6. Step 6: Final answer
   x = 4,992.20