Finding the Fourth Proportional to 105,586.98, 158,405.30 and 30,708.78

Step by Step Solution

1. Step 1: Write the proportion equation
   105,586.98 : 158,405.30 = 30,708.78 : x
2. Step 2: Convert to fraction form
   105,586.98/158,405.30 = 30,708.78/x
3. Step 3: Cross multiply
   105,586.98x = 158,405.30 × 30,708.78
4. Step 4: Simplify right side
   105,586.98x = 4,864,433,508.53
5. Step 5: Solve for x
   x = 4,864,433,508.53/105,586.98
6. Step 6: Final answer
   x = 46,070.39