Finding the Fourth Proportional to 105,705.28, 158,482.60 and 49,514.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,705.28 : 158,482.60 = 49,514.56 : x
2. Step 2: Convert to fraction form
   105,705.28/158,482.60 = 49,514.56/x
3. Step 3: Cross multiply
   105,705.28x = 158,482.60 × 49,514.56
4. Step 4: Simplify right side
   105,705.28x = 7,847,196,206.66
5. Step 5: Solve for x
   x = 7,847,196,206.66/105,705.28
6. Step 6: Final answer
   x = 74,236.56