Finding the Fourth Proportional to 12,093.01, 18,138.66 and 3,208.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,093.01 : 18,138.66 = 3,208.15 : x
2. Step 2: Convert to fraction form
   12,093.01/18,138.66 = 3,208.15/x
3. Step 3: Cross multiply
   12,093.01x = 18,138.66 × 3,208.15
4. Step 4: Simplify right side
   12,093.01x = 58,191,510.73
5. Step 5: Solve for x
   x = 58,191,510.73/12,093.01
6. Step 6: Final answer
   x = 4,811.99