Finding the Fourth Proportional to 144,676.10, 199,647.52 and 81,010.71

Step by Step Solution

1. Step 1: Write the proportion equation
   144,676.10 : 199,647.52 = 81,010.71 : x
2. Step 2: Convert to fraction form
   144,676.10/199,647.52 = 81,010.71/x
3. Step 3: Cross multiply
   144,676.10x = 199,647.52 × 81,010.71
4. Step 4: Simplify right side
   144,676.10x = 16,173,587,142.41
5. Step 5: Solve for x
   x = 16,173,587,142.41/144,676.10
6. Step 6: Final answer
   x = 111,791.70