Finding the Fourth Proportional to 81,185.27, 111,962.88 and 67,618.36

Step by Step Solution

1. Step 1: Write the proportion equation
   81,185.27 : 111,962.88 = 67,618.36 : x
2. Step 2: Convert to fraction form
   81,185.27/111,962.88 = 67,618.36/x
3. Step 3: Cross multiply
   81,185.27x = 111,962.88 × 67,618.36
4. Step 4: Simplify right side
   81,185.27x = 7,570,746,326.48
5. Step 5: Solve for x
   x = 7,570,746,326.48/81,185.27
6. Step 6: Final answer
   x = 93,252.71