Finding the Fourth Proportional to 81,112.82, 111,939.09 and 45,314.42

Step by Step Solution

1. Step 1: Write the proportion equation
   81,112.82 : 111,939.09 = 45,314.42 : x
2. Step 2: Convert to fraction form
   81,112.82/111,939.09 = 45,314.42/x
3. Step 3: Cross multiply
   81,112.82x = 111,939.09 × 45,314.42
4. Step 4: Simplify right side
   81,112.82x = 5,072,454,938.68
5. Step 5: Solve for x
   x = 5,072,454,938.68/81,112.82
6. Step 6: Final answer
   x = 62,535.80