Finding the Fourth Proportional to 81,936.69, 113,074.83 and 46,128.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,936.69 : 113,074.83 = 46,128.06 : x
2. Step 2: Convert to fraction form
   81,936.69/113,074.83 = 46,128.06/x
3. Step 3: Cross multiply
   81,936.69x = 113,074.83 × 46,128.06
4. Step 4: Simplify right side
   81,936.69x = 5,215,922,542.73
5. Step 5: Solve for x
   x = 5,215,922,542.73/81,936.69
6. Step 6: Final answer
   x = 63,657.96