Finding the Fourth Proportional to 42,540, 58,705.20 and 23,676.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,540 : 58,705.20 = 23,676.72 : x
2. Step 2: Convert to fraction form
   42,540/58,705.20 = 23,676.72/x
3. Step 3: Cross multiply
   42,540x = 58,705.20 × 23,676.72
4. Step 4: Simplify right side
   42,540x = 1,389,946,582.94
5. Step 5: Solve for x
   x = 1,389,946,582.94/42,540
6. Step 6: Final answer
   x = 32,673.87