Finding the Fourth Proportional to 52,818.56, 72,890.18 and 28,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,818.56 : 72,890.18 = 28,944.72 : x
2. Step 2: Convert to fraction form
   52,818.56/72,890.18 = 28,944.72/x
3. Step 3: Cross multiply
   52,818.56x = 72,890.18 × 28,944.72
4. Step 4: Simplify right side
   52,818.56x = 2,109,785,850.19
5. Step 5: Solve for x
   x = 2,109,785,850.19/52,818.56
6. Step 6: Final answer
   x = 39,944.03