Finding the Fourth Proportional to 52,402.83, 72,315.90 and 28,529.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,402.83 : 72,315.90 = 28,529.49 : x
2. Step 2: Convert to fraction form
   52,402.83/72,315.90 = 28,529.49/x
3. Step 3: Cross multiply
   52,402.83x = 72,315.90 × 28,529.49
4. Step 4: Simplify right side
   52,402.83x = 2,063,135,745.89
5. Step 5: Solve for x
   x = 2,063,135,745.89/52,402.83
6. Step 6: Final answer
   x = 39,370.69