Finding the Fourth Proportional to 140,815, 194,276.86 and 80,342.20

Step by Step Solution

1. Step 1: Write the proportion equation
   140,815 : 194,276.86 = 80,342.20 : x
2. Step 2: Convert to fraction form
   140,815/194,276.86 = 80,342.20/x
3. Step 3: Cross multiply
   140,815x = 194,276.86 × 80,342.20
4. Step 4: Simplify right side
   140,815x = 15,608,630,341.49
5. Step 5: Solve for x
   x = 15,608,630,341.49/140,815
6. Step 6: Final answer
   x = 110,844.94