Finding the Fourth Proportional to 52,488.27, 72,435.33 and 28,616.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,488.27 : 72,435.33 = 28,616.49 : x
2. Step 2: Convert to fraction form
   52,488.27/72,435.33 = 28,616.49/x
3. Step 3: Cross multiply
   52,488.27x = 72,435.33 × 28,616.49
4. Step 4: Simplify right side
   52,488.27x = 2,072,844,896.59
5. Step 5: Solve for x
   x = 2,072,844,896.59/52,488.27
6. Step 6: Final answer
   x = 39,491.58