Finding the Fourth Proportional to 76,665.83, 114,998.73 and 20,504.49

Step by Step Solution

1. Step 1: Write the proportion equation
   76,665.83 : 114,998.73 = 20,504.49 : x
2. Step 2: Convert to fraction form
   76,665.83/114,998.73 = 20,504.49/x
3. Step 3: Cross multiply
   76,665.83x = 114,998.73 × 20,504.49
4. Step 4: Simplify right side
   76,665.83x = 2,357,990,206.78
5. Step 5: Solve for x
   x = 2,357,990,206.78/76,665.83
6. Step 6: Final answer
   x = 30,756.73