Finding the Fourth Proportional to 81,085.37, 111,897.77 and 45,275.36

Step by Step Solution

1. Step 1: Write the proportion equation
   81,085.37 : 111,897.77 = 45,275.36 : x
2. Step 2: Convert to fraction form
   81,085.37/111,897.77 = 45,275.36/x
3. Step 3: Cross multiply
   81,085.37x = 111,897.77 × 45,275.36
4. Step 4: Simplify right side
   81,085.37x = 5,066,211,034.08
5. Step 5: Solve for x
   x = 5,066,211,034.08/81,085.37
6. Step 6: Final answer
   x = 62,479.97