Finding the Fourth Proportional to 52,309.98, 72,188.51 and 28,436.67

Step by Step Solution

1. Step 1: Write the proportion equation
   52,309.98 : 72,188.51 = 28,436.67 : x
2. Step 2: Convert to fraction form
   52,309.98/72,188.51 = 28,436.67/x
3. Step 3: Cross multiply
   52,309.98x = 72,188.51 × 28,436.67
4. Step 4: Simplify right side
   52,309.98x = 2,052,800,694.48
5. Step 5: Solve for x
   x = 2,052,800,694.48/52,309.98
6. Step 6: Final answer
   x = 39,243.00