Finding the Fourth Proportional to 140,162.58, 193,524.48 and 86,520.42

Step by Step Solution

1. Step 1: Write the proportion equation
   140,162.58 : 193,524.48 = 86,520.42 : x
2. Step 2: Convert to fraction form
   140,162.58/193,524.48 = 86,520.42/x
3. Step 3: Cross multiply
   140,162.58x = 193,524.48 × 86,520.42
4. Step 4: Simplify right side
   140,162.58x = 16,743,819,289.88
5. Step 5: Solve for x
   x = 16,743,819,289.88/140,162.58
6. Step 6: Final answer
   x = 119,459.98