Finding the Fourth Proportional to 113,896.78, 170,844.77 and 30,790.78

Step by Step Solution

1. Step 1: Write the proportion equation
   113,896.78 : 170,844.77 = 30,790.78 : x
2. Step 2: Convert to fraction form
   113,896.78/170,844.77 = 30,790.78/x
3. Step 3: Cross multiply
   113,896.78x = 170,844.77 × 30,790.78
4. Step 4: Simplify right side
   113,896.78x = 5,260,443,573.27
5. Step 5: Solve for x
   x = 5,260,443,573.27/113,896.78
6. Step 6: Final answer
   x = 46,186.06