Finding the Fourth Proportional to 108,739.72, 163,009.86 and 42,162.76

Step by Step Solution

1. Step 1: Write the proportion equation
   108,739.72 : 163,009.86 = 42,162.76 : x
2. Step 2: Convert to fraction form
   108,739.72/163,009.86 = 42,162.76/x
3. Step 3: Cross multiply
   108,739.72x = 163,009.86 × 42,162.76
4. Step 4: Simplify right side
   108,739.72x = 6,872,945,604.81
5. Step 5: Solve for x
   x = 6,872,945,604.81/108,739.72
6. Step 6: Final answer
   x = 63,205.47