Finding the Fourth Proportional to 52,728.03, 72,764.69 and 28,854.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,728.03 : 72,764.69 = 28,854.72 : x
2. Step 2: Convert to fraction form
   52,728.03/72,764.69 = 28,854.72/x
3. Step 3: Cross multiply
   52,728.03x = 72,764.69 × 28,854.72
4. Step 4: Simplify right side
   52,728.03x = 2,099,604,755.84
5. Step 5: Solve for x
   x = 2,099,604,755.84/52,728.03
6. Step 6: Final answer
   x = 39,819.52