Finding the Fourth Proportional to 52,617.86, 72,614.20 and 28,744.92

Step by Step Solution

1. Step 1: Write the proportion equation
   52,617.86 : 72,614.20 = 28,744.92 : x
2. Step 2: Convert to fraction form
   52,617.86/72,614.20 = 28,744.92/x
3. Step 3: Cross multiply
   52,617.86x = 72,614.20 × 28,744.92
4. Step 4: Simplify right side
   52,617.86x = 2,087,289,369.86
5. Step 5: Solve for x
   x = 2,087,289,369.86/52,617.86
6. Step 6: Final answer
   x = 39,668.84