Finding the Fourth Proportional to 140,128.55, 193,377.89 and 76,467.41

Step by Step Solution

1. Step 1: Write the proportion equation
   140,128.55 : 193,377.89 = 76,467.41 : x
2. Step 2: Convert to fraction form
   140,128.55/193,377.89 = 76,467.41/x
3. Step 3: Cross multiply
   140,128.55x = 193,377.89 × 76,467.41
4. Step 4: Simplify right side
   140,128.55x = 14,787,106,399.56
5. Step 5: Solve for x
   x = 14,787,106,399.56/140,128.55
6. Step 6: Final answer
   x = 105,525.29