Finding the Fourth Proportional to 57,661, 79,504.02 and 40,668.04

Step by Step Solution

1. Step 1: Write the proportion equation
   57,661 : 79,504.02 = 40,668.04 : x
2. Step 2: Convert to fraction form
   57,661/79,504.02 = 40,668.04/x
3. Step 3: Cross multiply
   57,661x = 79,504.02 × 40,668.04
4. Step 4: Simplify right side
   57,661x = 3,233,272,665.52
5. Step 5: Solve for x
   x = 3,233,272,665.52/57,661
6. Step 6: Final answer
   x = 56,073.82