Finding the Fourth Proportional to 105,922.28, 158,881.37 and 42,740.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105,922.28 : 158,881.37 = 42,740.73 : x
2. Step 2: Convert to fraction form
   105,922.28/158,881.37 = 42,740.73/x
3. Step 3: Cross multiply
   105,922.28x = 158,881.37 × 42,740.73
4. Step 4: Simplify right side
   105,922.28x = 6,790,705,523.50
5. Step 5: Solve for x
   x = 6,790,705,523.50/105,922.28
6. Step 6: Final answer
   x = 64,110.26