Finding the Fourth Proportional to 67,678.69, 101,538.79 and 30,270.23

Step by Step Solution

1. Step 1: Write the proportion equation
   67,678.69 : 101,538.79 = 30,270.23 : x
2. Step 2: Convert to fraction form
   67,678.69/101,538.79 = 30,270.23/x
3. Step 3: Cross multiply
   67,678.69x = 101,538.79 × 30,270.23
4. Step 4: Simplify right side
   67,678.69x = 3,073,602,527.22
5. Step 5: Solve for x
   x = 3,073,602,527.22/67,678.69
6. Step 6: Final answer
   x = 45,414.63