Finding the Fourth Proportional to 50,668.02, 69,875.37 and 30,489.89

Step by Step Solution

1. Step 1: Write the proportion equation
   50,668.02 : 69,875.37 = 30,489.89 : x
2. Step 2: Convert to fraction form
   50,668.02/69,875.37 = 30,489.89/x
3. Step 3: Cross multiply
   50,668.02x = 69,875.37 × 30,489.89
4. Step 4: Simplify right side
   50,668.02x = 2,130,491,995.63
5. Step 5: Solve for x
   x = 2,130,491,995.63/50,668.02
6. Step 6: Final answer
   x = 42,048.06