Finding the Fourth Proportional to 52,691.76, 72,714.72 and 28,818.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,691.76 : 72,714.72 = 28,818.48 : x
2. Step 2: Convert to fraction form
   52,691.76/72,714.72 = 28,818.48/x
3. Step 3: Cross multiply
   52,691.76x = 72,714.72 × 28,818.48
4. Step 4: Simplify right side
   52,691.76x = 2,095,527,704.03
5. Step 5: Solve for x
   x = 2,095,527,704.03/52,691.76
6. Step 6: Final answer
   x = 39,769.55