Finding the Fourth Proportional to 52,609.50, 72,600.68 and 28,736.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,609.50 : 72,600.68 = 28,736.18 : x
2. Step 2: Convert to fraction form
   52,609.50/72,600.68 = 28,736.18/x
3. Step 3: Cross multiply
   52,609.50x = 72,600.68 × 28,736.18
4. Step 4: Simplify right side
   52,609.50x = 2,086,266,208.60
5. Step 5: Solve for x
   x = 2,086,266,208.60/52,609.50
6. Step 6: Final answer
   x = 39,655.69