Finding the Fourth Proportional to 105,436.56, 158,116.40 and 30,536.40

Step by Step Solution

1. Step 1: Write the proportion equation
   105,436.56 : 158,116.40 = 30,536.40 : x
2. Step 2: Convert to fraction form
   105,436.56/158,116.40 = 30,536.40/x
3. Step 3: Cross multiply
   105,436.56x = 158,116.40 × 30,536.40
4. Step 4: Simplify right side
   105,436.56x = 4,828,305,636.96
5. Step 5: Solve for x
   x = 4,828,305,636.96/105,436.56
6. Step 6: Final answer
   x = 45,793.47