Finding the Fourth Proportional to 52,580.88, 72,563.33 and 28,709.37

Step by Step Solution

1. Step 1: Write the proportion equation
   52,580.88 : 72,563.33 = 28,709.37 : x
2. Step 2: Convert to fraction form
   52,580.88/72,563.33 = 28,709.37/x
3. Step 3: Cross multiply
   52,580.88x = 72,563.33 × 28,709.37
4. Step 4: Simplify right side
   52,580.88x = 2,083,247,345.86
5. Step 5: Solve for x
   x = 2,083,247,345.86/52,580.88
6. Step 6: Final answer
   x = 39,619.86