Finding the Fourth Proportional to 118,919.83, 164,108.18 and 65,204.73

Step by Step Solution

1. Step 1: Write the proportion equation
   118,919.83 : 164,108.18 = 65,204.73 : x
2. Step 2: Convert to fraction form
   118,919.83/164,108.18 = 65,204.73/x
3. Step 3: Cross multiply
   118,919.83x = 164,108.18 × 65,204.73
4. Step 4: Simplify right side
   118,919.83x = 10,700,629,363.93
5. Step 5: Solve for x
   x = 10,700,629,363.93/118,919.83
6. Step 6: Final answer
   x = 89,981.88