Finding the Fourth Proportional to 105,414.42, 158,144.94 and 49,223.90

Step by Step Solution

1. Step 1: Write the proportion equation
   105,414.42 : 158,144.94 = 49,223.90 : x
2. Step 2: Convert to fraction form
   105,414.42/158,144.94 = 49,223.90/x
3. Step 3: Cross multiply
   105,414.42x = 158,144.94 × 49,223.90
4. Step 4: Simplify right side
   105,414.42x = 7,784,510,712.07
5. Step 5: Solve for x
   x = 7,784,510,712.07/105,414.42
6. Step 6: Final answer
   x = 73,846.73