Finding the Fourth Proportional to 140,405.55, 193,760.15 and 76,744.41

Step by Step Solution

1. Step 1: Write the proportion equation
   140,405.55 : 193,760.15 = 76,744.41 : x
2. Step 2: Convert to fraction form
   140,405.55/193,760.15 = 76,744.41/x
3. Step 3: Cross multiply
   140,405.55x = 193,760.15 × 76,744.41
4. Step 4: Simplify right side
   140,405.55x = 14,870,008,009.54
5. Step 5: Solve for x
   x = 14,870,008,009.54/140,405.55
6. Step 6: Final answer
   x = 105,907.55