Finding the Fourth Proportional to 118,383.09, 163,372.59 and 64,673.10

Step by Step Solution

1. Step 1: Write the proportion equation
   118,383.09 : 163,372.59 = 64,673.10 : x
2. Step 2: Convert to fraction form
   118,383.09/163,372.59 = 64,673.10/x
3. Step 3: Cross multiply
   118,383.09x = 163,372.59 × 64,673.10
4. Step 4: Simplify right side
   118,383.09x = 10,565,811,850.33
5. Step 5: Solve for x
   x = 10,565,811,850.33/118,383.09
6. Step 6: Final answer
   x = 89,251.02