Finding the Fourth Proportional to 196,744.72, 295,139.44 and 72,085.76

Step by Step Solution

1. Step 1: Write the proportion equation
   196,744.72 : 295,139.44 = 72,085.76 : x
2. Step 2: Convert to fraction form
   196,744.72/295,139.44 = 72,085.76/x
3. Step 3: Cross multiply
   196,744.72x = 295,139.44 × 72,085.76
4. Step 4: Simplify right side
   196,744.72x = 21,275,350,838.37
5. Step 5: Solve for x
   x = 21,275,350,838.37/196,744.72
6. Step 6: Final answer
   x = 108,136.83