Finding the Fourth Proportional to 81,083.36, 111,806.72 and 52,736.48

Step by Step Solution

1. Step 1: Write the proportion equation
   81,083.36 : 111,806.72 = 52,736.48 : x
2. Step 2: Convert to fraction form
   81,083.36/111,806.72 = 52,736.48/x
3. Step 3: Cross multiply
   81,083.36x = 111,806.72 × 52,736.48
4. Step 4: Simplify right side
   81,083.36x = 5,896,292,853.15
5. Step 5: Solve for x
   x = 5,896,292,853.15/81,083.36
6. Step 6: Final answer
   x = 72,718.90