Finding the Fourth Proportional to 88,815.88, 122,584.62 and 86,005.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,815.88 : 122,584.62 = 86,005.72 : x
2. Step 2: Convert to fraction form
   88,815.88/122,584.62 = 86,005.72/x
3. Step 3: Cross multiply
   88,815.88x = 122,584.62 × 86,005.72
4. Step 4: Simplify right side
   88,815.88x = 10,542,978,504.03
5. Step 5: Solve for x
   x = 10,542,978,504.03/88,815.88
6. Step 6: Final answer
   x = 118,706.01