Finding the Fourth Proportional to 118,456.37, 163,469.39 and 64,741.37

Step by Step Solution

1. Step 1: Write the proportion equation
   118,456.37 : 163,469.39 = 64,741.37 : x
2. Step 2: Convert to fraction form
   118,456.37/163,469.39 = 64,741.37/x
3. Step 3: Cross multiply
   118,456.37x = 163,469.39 × 64,741.37
4. Step 4: Simplify right side
   118,456.37x = 10,583,231,120.61
5. Step 5: Solve for x
   x = 10,583,231,120.61/118,456.37
6. Step 6: Final answer
   x = 89,342.87