Finding the Fourth Proportional to 118,196.54, 163,107.99 and 64,481.54

Step by Step Solution

1. Step 1: Write the proportion equation
   118,196.54 : 163,107.99 = 64,481.54 : x
2. Step 2: Convert to fraction form
   118,196.54/163,107.99 = 64,481.54/x
3. Step 3: Cross multiply
   118,196.54x = 163,107.99 × 64,481.54
4. Step 4: Simplify right side
   118,196.54x = 10,517,454,059.10
5. Step 5: Solve for x
   x = 10,517,454,059.10/118,196.54
6. Step 6: Final answer
   x = 88,982.76