Finding the Fourth Proportional to 140,333.56, 193,595.34 and 80,683

Step by Step Solution

1. Step 1: Write the proportion equation
   140,333.56 : 193,595.34 = 80,683 : x
2. Step 2: Convert to fraction form
   140,333.56/193,595.34 = 80,683/x
3. Step 3: Cross multiply
   140,333.56x = 193,595.34 × 80,683
4. Step 4: Simplify right side
   140,333.56x = 15,619,852,817.22
5. Step 5: Solve for x
   x = 15,619,852,817.22/140,333.56
6. Step 6: Final answer
   x = 111,305.18