Finding the Fourth Proportional to 80,638.38, 120,994.29 and 41,175.18

Step by Step Solution

1. Step 1: Write the proportion equation
   80,638.38 : 120,994.29 = 41,175.18 : x
2. Step 2: Convert to fraction form
   80,638.38/120,994.29 = 41,175.18/x
3. Step 3: Cross multiply
   80,638.38x = 120,994.29 × 41,175.18
4. Step 4: Simplify right side
   80,638.38x = 4,981,961,669.72
5. Step 5: Solve for x
   x = 4,981,961,669.72/80,638.38
6. Step 6: Final answer
   x = 61,781.52