Finding the Fourth Proportional to 81,182.90, 111,959.60 and 67,615.98

Step by Step Solution

1. Step 1: Write the proportion equation
   81,182.90 : 111,959.60 = 67,615.98 : x
2. Step 2: Convert to fraction form
   81,182.90/111,959.60 = 67,615.98/x
3. Step 3: Cross multiply
   81,182.90x = 111,959.60 × 67,615.98
4. Step 4: Simplify right side
   81,182.90x = 7,570,258,074.41
5. Step 5: Solve for x
   x = 7,570,258,074.41/81,182.90
6. Step 6: Final answer
   x = 93,249.42