Finding the Fourth Proportional to 140,670.31, 194,118.02 and 80,238.71

Step by Step Solution

1. Step 1: Write the proportion equation
   140,670.31 : 194,118.02 = 80,238.71 : x
2. Step 2: Convert to fraction form
   140,670.31/194,118.02 = 80,238.71/x
3. Step 3: Cross multiply
   140,670.31x = 194,118.02 × 80,238.71
4. Step 4: Simplify right side
   140,670.31x = 15,575,779,512.55
5. Step 5: Solve for x
   x = 15,575,779,512.55/140,670.31
6. Step 6: Final answer
   x = 110,725.42