Finding the Fourth Proportional to 52,517.78, 72,472.82 and 28,644.92

Step by Step Solution

1. Step 1: Write the proportion equation
   52,517.78 : 72,472.82 = 28,644.92 : x
2. Step 2: Convert to fraction form
   52,517.78/72,472.82 = 28,644.92/x
3. Step 3: Cross multiply
   52,517.78x = 72,472.82 × 28,644.92
4. Step 4: Simplify right side
   52,517.78x = 2,075,978,131.07
5. Step 5: Solve for x
   x = 2,075,978,131.07/52,517.78
6. Step 6: Final answer
   x = 39,529.05