Finding the Fourth Proportional to 52,603.61, 72,593.39 and 28,729.85

Step by Step Solution

1. Step 1: Write the proportion equation
   52,603.61 : 72,593.39 = 28,729.85 : x
2. Step 2: Convert to fraction form
   52,603.61/72,593.39 = 28,729.85/x
3. Step 3: Cross multiply
   52,603.61x = 72,593.39 × 28,729.85
4. Step 4: Simplify right side
   52,603.61x = 2,085,597,062.04
5. Step 5: Solve for x
   x = 2,085,597,062.04/52,603.61
6. Step 6: Final answer
   x = 39,647.41