Finding the Fourth Proportional to 81,940.37, 113,079.81 and 46,131.65

Step by Step Solution

1. Step 1: Write the proportion equation
   81,940.37 : 113,079.81 = 46,131.65 : x
2. Step 2: Convert to fraction form
   81,940.37/113,079.81 = 46,131.65/x
3. Step 3: Cross multiply
   81,940.37x = 113,079.81 × 46,131.65
4. Step 4: Simplify right side
   81,940.37x = 5,216,557,651.59
5. Step 5: Solve for x
   x = 5,216,557,651.59/81,940.37
6. Step 6: Final answer
   x = 63,662.86