Finding the Fourth Proportional to 108,906.15, 163,359.23 and 64,510.05

Step by Step Solution

1. Step 1: Write the proportion equation
   108,906.15 : 163,359.23 = 64,510.05 : x
2. Step 2: Convert to fraction form
   108,906.15/163,359.23 = 64,510.05/x
3. Step 3: Cross multiply
   108,906.15x = 163,359.23 × 64,510.05
4. Step 4: Simplify right side
   108,906.15x = 10,538,311,772.71
5. Step 5: Solve for x
   x = 10,538,311,772.71/108,906.15
6. Step 6: Final answer
   x = 96,765.08