Finding the Fourth Proportional to 138,401.33, 191,002.46 and 80,269.88

Step by Step Solution

1. Step 1: Write the proportion equation
   138,401.33 : 191,002.46 = 80,269.88 : x
2. Step 2: Convert to fraction form
   138,401.33/191,002.46 = 80,269.88/x
3. Step 3: Cross multiply
   138,401.33x = 191,002.46 × 80,269.88
4. Step 4: Simplify right side
   138,401.33x = 15,331,743,187.54
5. Step 5: Solve for x
   x = 15,331,743,187.54/138,401.33
6. Step 6: Final answer
   x = 110,777.43