Finding the Fourth Proportional to 52,722.42, 72,757.85 and 28,849.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,722.42 : 72,757.85 = 28,849.50 : x
2. Step 2: Convert to fraction form
   52,722.42/72,757.85 = 28,849.50/x
3. Step 3: Cross multiply
   52,722.42x = 72,757.85 × 28,849.50
4. Step 4: Simplify right side
   52,722.42x = 2,099,027,593.58
5. Step 5: Solve for x
   x = 2,099,027,593.58/52,722.42
6. Step 6: Final answer
   x = 39,812.81