Finding the Fourth Proportional to 118,896.05, 164,077.85 and 65,179.89

Step by Step Solution

1. Step 1: Write the proportion equation
   118,896.05 : 164,077.85 = 65,179.89 : x
2. Step 2: Convert to fraction form
   118,896.05/164,077.85 = 65,179.89/x
3. Step 3: Cross multiply
   118,896.05x = 164,077.85 × 65,179.89
4. Step 4: Simplify right side
   118,896.05x = 10,694,576,377.39
5. Step 5: Solve for x
   x = 10,694,576,377.39/118,896.05
6. Step 6: Final answer
   x = 89,948.96