Finding the Fourth Proportional to 118,966.50, 164,173.77 and 65,974.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,966.50 : 164,173.77 = 65,974.50 : x
2. Step 2: Convert to fraction form
   118,966.50/164,173.77 = 65,974.50/x
3. Step 3: Cross multiply
   118,966.50x = 164,173.77 × 65,974.50
4. Step 4: Simplify right side
   118,966.50x = 10,831,282,388.87
5. Step 5: Solve for x
   x = 10,831,282,388.87/118,966.50
6. Step 6: Final answer
   x = 91,044.81