Finding the Fourth Proportional to 81,936.54, 113,056.29 and 46,128.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,936.54 : 113,056.29 = 46,128.06 : x
2. Step 2: Convert to fraction form
   81,936.54/113,056.29 = 46,128.06/x
3. Step 3: Cross multiply
   81,936.54x = 113,056.29 × 46,128.06
4. Step 4: Simplify right side
   81,936.54x = 5,215,067,328.50
5. Step 5: Solve for x
   x = 5,215,067,328.50/81,936.54
6. Step 6: Final answer
   x = 63,647.64