Finding the Fourth Proportional to 86,105.89, 118,818.25 and 49,798.05

Step by Step Solution

1. Step 1: Write the proportion equation
   86,105.89 : 118,818.25 = 49,798.05 : x
2. Step 2: Convert to fraction form
   86,105.89/118,818.25 = 49,798.05/x
3. Step 3: Cross multiply
   86,105.89x = 118,818.25 × 49,798.05
4. Step 4: Simplify right side
   86,105.89x = 5,916,917,154.41
5. Step 5: Solve for x
   x = 5,916,917,154.41/86,105.89
6. Step 6: Final answer
   x = 68,716.75