Finding the Fourth Proportional to 52,619.78, 72,615.03 and 28,747.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,619.78 : 72,615.03 = 28,747.82 : x
2. Step 2: Convert to fraction form
   52,619.78/72,615.03 = 28,747.82/x
3. Step 3: Cross multiply
   52,619.78x = 72,615.03 × 28,747.82
4. Step 4: Simplify right side
   52,619.78x = 2,087,523,811.73
5. Step 5: Solve for x
   x = 2,087,523,811.73/52,619.78
6. Step 6: Final answer
   x = 39,671.85