Finding the Fourth Proportional to 52,399.38, 72,311.02 and 28,526.22

Step by Step Solution

1. Step 1: Write the proportion equation
   52,399.38 : 72,311.02 = 28,526.22 : x
2. Step 2: Convert to fraction form
   52,399.38/72,311.02 = 28,526.22/x
3. Step 3: Cross multiply
   52,399.38x = 72,311.02 × 28,526.22
4. Step 4: Simplify right side
   52,399.38x = 2,062,760,064.94
5. Step 5: Solve for x
   x = 2,062,760,064.94/52,399.38
6. Step 6: Final answer
   x = 39,366.12