Finding the Fourth Proportional to 140,760.72, 194,251.40 and 80,339.52

Step by Step Solution

1. Step 1: Write the proportion equation
   140,760.72 : 194,251.40 = 80,339.52 : x
2. Step 2: Convert to fraction form
   140,760.72/194,251.40 = 80,339.52/x
3. Step 3: Cross multiply
   140,760.72x = 194,251.40 × 80,339.52
4. Step 4: Simplify right side
   140,760.72x = 15,606,064,235.33
5. Step 5: Solve for x
   x = 15,606,064,235.33/140,760.72
6. Step 6: Final answer
   x = 110,869.45