Finding the Fourth Proportional to 76,760.10, 114,970.64 and 50,144.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,760.10 : 114,970.64 = 50,144.31 : x
2. Step 2: Convert to fraction form
   76,760.10/114,970.64 = 50,144.31/x
3. Step 3: Cross multiply
   76,760.10x = 114,970.64 × 50,144.31
4. Step 4: Simplify right side
   76,760.10x = 5,765,123,162.34
5. Step 5: Solve for x
   x = 5,765,123,162.34/76,760.10
6. Step 6: Final answer
   x = 75,105.73