Finding the Fourth Proportional to 52,580.34, 72,559.98 and 28,706.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,580.34 : 72,559.98 = 28,706.49 : x
2. Step 2: Convert to fraction form
   52,580.34/72,559.98 = 28,706.49/x
3. Step 3: Cross multiply
   52,580.34x = 72,559.98 × 28,706.49
4. Step 4: Simplify right side
   52,580.34x = 2,082,942,340.27
5. Step 5: Solve for x
   x = 2,082,942,340.27/52,580.34
6. Step 6: Final answer
   x = 39,614.47