Finding the Fourth Proportional to 81,092.28, 111,907.59 and 45,283.60

Step by Step Solution

1. Step 1: Write the proportion equation
   81,092.28 : 111,907.59 = 45,283.60 : x
2. Step 2: Convert to fraction form
   81,092.28/111,907.59 = 45,283.60/x
3. Step 3: Cross multiply
   81,092.28x = 111,907.59 × 45,283.60
4. Step 4: Simplify right side
   81,092.28x = 5,067,578,542.52
5. Step 5: Solve for x
   x = 5,067,578,542.52/81,092.28
6. Step 6: Final answer
   x = 62,491.50