Finding the Fourth Proportional to 179,142.72, 268,760.25 and 128,600.34

Step by Step Solution

1. Step 1: Write the proportion equation
   179,142.72 : 268,760.25 = 128,600.34 : x
2. Step 2: Convert to fraction form
   179,142.72/268,760.25 = 128,600.34/x
3. Step 3: Cross multiply
   179,142.72x = 268,760.25 × 128,600.34
4. Step 4: Simplify right side
   179,142.72x = 34,562,659,528.49
5. Step 5: Solve for x
   x = 34,562,659,528.49/179,142.72
6. Step 6: Final answer
   x = 192,933.65