Finding the Fourth Proportional to 113,862.72, 170,802.72 and 30,756

Step by Step Solution

1. Step 1: Write the proportion equation
   113,862.72 : 170,802.72 = 30,756 : x
2. Step 2: Convert to fraction form
   113,862.72/170,802.72 = 30,756/x
3. Step 3: Cross multiply
   113,862.72x = 170,802.72 × 30,756
4. Step 4: Simplify right side
   113,862.72x = 5,253,208,456.32
5. Step 5: Solve for x
   x = 5,253,208,456.32/113,862.72
6. Step 6: Final answer
   x = 46,136.33