Finding the Fourth Proportional to 40,732.91, 56,152.50 and 28,596.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,732.91 : 56,152.50 = 28,596.42 : x
2. Step 2: Convert to fraction form
   40,732.91/56,152.50 = 28,596.42/x
3. Step 3: Cross multiply
   40,732.91x = 56,152.50 × 28,596.42
4. Step 4: Simplify right side
   40,732.91x = 1,605,760,474.05
5. Step 5: Solve for x
   x = 1,605,760,474.05/40,732.91
6. Step 6: Final answer
   x = 39,421.70