Finding the Fourth Proportional to 118,919.57, 164,108.76 and 65,204.49

Step by Step Solution

1. Step 1: Write the proportion equation
   118,919.57 : 164,108.76 = 65,204.49 : x
2. Step 2: Convert to fraction form
   118,919.57/164,108.76 = 65,204.49/x
3. Step 3: Cross multiply
   118,919.57x = 164,108.76 × 65,204.49
4. Step 4: Simplify right side
   118,919.57x = 10,700,628,554.61
5. Step 5: Solve for x
   x = 10,700,628,554.61/118,919.57
6. Step 6: Final answer
   x = 89,982.07