Finding the Fourth Proportional to 76,666.69, 114,849.78 and 50,291.47

Step by Step Solution

1. Step 1: Write the proportion equation
   76,666.69 : 114,849.78 = 50,291.47 : x
2. Step 2: Convert to fraction form
   76,666.69/114,849.78 = 50,291.47/x
3. Step 3: Cross multiply
   76,666.69x = 114,849.78 × 50,291.47
4. Step 4: Simplify right side
   76,666.69x = 5,775,964,265.38
5. Step 5: Solve for x
   x = 5,775,964,265.38/76,666.69
6. Step 6: Final answer
   x = 75,338.64