Finding the Fourth Proportional to 19,671.89, 27,146.48 and 10,719.18

Step by Step Solution

1. Step 1: Write the proportion equation
   19,671.89 : 27,146.48 = 10,719.18 : x
2. Step 2: Convert to fraction form
   19,671.89/27,146.48 = 10,719.18/x
3. Step 3: Cross multiply
   19,671.89x = 27,146.48 × 10,719.18
4. Step 4: Simplify right side
   19,671.89x = 290,987,951.89
5. Step 5: Solve for x
   x = 290,987,951.89/19,671.89
6. Step 6: Final answer
   x = 14,792.07