Finding the Fourth Proportional to 108,996.73, 163,428.18 and 42,359.05

Step by Step Solution

1. Step 1: Write the proportion equation
   108,996.73 : 163,428.18 = 42,359.05 : x
2. Step 2: Convert to fraction form
   108,996.73/163,428.18 = 42,359.05/x
3. Step 3: Cross multiply
   108,996.73x = 163,428.18 × 42,359.05
4. Step 4: Simplify right side
   108,996.73x = 6,922,661,630.89
5. Step 5: Solve for x
   x = 6,922,661,630.89/108,996.73
6. Step 6: Final answer
   x = 63,512.57