Finding the Fourth Proportional to 118,849.79, 164,009 and 65,133.83

Step by Step Solution

1. Step 1: Write the proportion equation
   118,849.79 : 164,009 = 65,133.83 : x
2. Step 2: Convert to fraction form
   118,849.79/164,009 = 65,133.83/x
3. Step 3: Cross multiply
   118,849.79x = 164,009 × 65,133.83
4. Step 4: Simplify right side
   118,849.79x = 10,682,534,324.47
5. Step 5: Solve for x
   x = 10,682,534,324.47/118,849.79
6. Step 6: Final answer
   x = 89,882.65