Finding the Fourth Proportional to 108,856.77, 163,347.34 and 42,288.23

Step by Step Solution

1. Step 1: Write the proportion equation
   108,856.77 : 163,347.34 = 42,288.23 : x
2. Step 2: Convert to fraction form
   108,856.77/163,347.34 = 42,288.23/x
3. Step 3: Cross multiply
   108,856.77x = 163,347.34 × 42,288.23
4. Step 4: Simplify right side
   108,856.77x = 6,907,669,883.81
5. Step 5: Solve for x
   x = 6,907,669,883.81/108,856.77
6. Step 6: Final answer
   x = 63,456.50