Finding the Fourth Proportional to 140,404.16, 193,757.40 and 76,742.42

Step by Step Solution

1. Step 1: Write the proportion equation
   140,404.16 : 193,757.40 = 76,742.42 : x
2. Step 2: Convert to fraction form
   140,404.16/193,757.40 = 76,742.42/x
3. Step 3: Cross multiply
   140,404.16x = 193,757.40 × 76,742.42
4. Step 4: Simplify right side
   140,404.16x = 14,869,410,800.12
5. Step 5: Solve for x
   x = 14,869,410,800.12/140,404.16
6. Step 6: Final answer
   x = 105,904.34