Finding the Fourth Proportional to 52,488.52, 72,431.46 and 28,615.24

Step by Step Solution

1. Step 1: Write the proportion equation
   52,488.52 : 72,431.46 = 28,615.24 : x
2. Step 2: Convert to fraction form
   52,488.52/72,431.46 = 28,615.24/x
3. Step 3: Cross multiply
   52,488.52x = 72,431.46 × 28,615.24
4. Step 4: Simplify right side
   52,488.52x = 2,072,643,611.45
5. Step 5: Solve for x
   x = 2,072,643,611.45/52,488.52
6. Step 6: Final answer
   x = 39,487.56