Finding the Fourth Proportional to 105,328.45, 157,986.53 and 30,446.94

Step by Step Solution

1. Step 1: Write the proportion equation
   105,328.45 : 157,986.53 = 30,446.94 : x
2. Step 2: Convert to fraction form
   105,328.45/157,986.53 = 30,446.94/x
3. Step 3: Cross multiply
   105,328.45x = 157,986.53 × 30,446.94
4. Step 4: Simplify right side
   105,328.45x = 4,810,205,979.80
5. Step 5: Solve for x
   x = 4,810,205,979.80/105,328.45
6. Step 6: Final answer
   x = 45,668.63