Finding the Fourth Proportional to 118,670.96, 163,759.59 and 64,945.60

Step by Step Solution

1. Step 1: Write the proportion equation
   118,670.96 : 163,759.59 = 64,945.60 : x
2. Step 2: Convert to fraction form
   118,670.96/163,759.59 = 64,945.60/x
3. Step 3: Cross multiply
   118,670.96x = 163,759.59 × 64,945.60
4. Step 4: Simplify right side
   118,670.96x = 10,635,464,418.91
5. Step 5: Solve for x
   x = 10,635,464,418.91/118,670.96
6. Step 6: Final answer
   x = 89,621.46