Finding the Fourth Proportional to 86,857.33, 118,768.61 and 86,857.33

Step by Step Solution

1. Step 1: Write the proportion equation
   86,857.33 : 118,768.61 = 86,857.33 : x
2. Step 2: Convert to fraction form
   86,857.33/118,768.61 = 86,857.33/x
3. Step 3: Cross multiply
   86,857.33x = 118,768.61 × 86,857.33
4. Step 4: Simplify right side
   86,857.33x = 10,315,924,495.32
5. Step 5: Solve for x
   x = 10,315,924,495.32/86,857.33
6. Step 6: Final answer
   x = 118,768.61