Finding the Fourth Proportional to 52,785, 72,843.39 and 28,586.22

Step by Step Solution

1. Step 1: Write the proportion equation
   52,785 : 72,843.39 = 28,586.22 : x
2. Step 2: Convert to fraction form
   52,785/72,843.39 = 28,586.22/x
3. Step 3: Cross multiply
   52,785x = 72,843.39 × 28,586.22
4. Step 4: Simplify right side
   52,785x = 2,082,317,172.09
5. Step 5: Solve for x
   x = 2,082,317,172.09/52,785
6. Step 6: Final answer
   x = 39,449.03