Finding the Fourth Proportional to 105,911.34, 158,820.36 and 49,767.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,911.34 : 158,820.36 = 49,767.42 : x
2. Step 2: Convert to fraction form
   105,911.34/158,820.36 = 49,767.42/x
3. Step 3: Cross multiply
   105,911.34x = 158,820.36 × 49,767.42
4. Step 4: Simplify right side
   105,911.34x = 7,904,079,560.67
5. Step 5: Solve for x
   x = 7,904,079,560.67/105,911.34
6. Step 6: Final answer
   x = 74,629.21