Finding the Fourth Proportional to 52,662.86, 72,674.72 and 28,789.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,662.86 : 72,674.72 = 28,789.52 : x
2. Step 2: Convert to fraction form
   52,662.86/72,674.72 = 28,789.52/x
3. Step 3: Cross multiply
   52,662.86x = 72,674.72 × 28,789.52
4. Step 4: Simplify right side
   52,662.86x = 2,092,270,304.93
5. Step 5: Solve for x
   x = 2,092,270,304.93/52,662.86
6. Step 6: Final answer
   x = 39,729.52