Finding the Fourth Proportional to 12,492, 18,738.18 and 3,258

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492 : 18,738.18 = 3,258 : x
2. Step 2: Convert to fraction form
   12,492/18,738.18 = 3,258/x
3. Step 3: Cross multiply
   12,492x = 18,738.18 × 3,258
4. Step 4: Simplify right side
   12,492x = 61,048,990.44
5. Step 5: Solve for x
   x = 61,048,990.44/12,492
6. Step 6: Final answer
   x = 4,887.05