Finding the Fourth Proportional to 52,700.69, 72,725.85 and 28,826.55

Step by Step Solution

1. Step 1: Write the proportion equation
   52,700.69 : 72,725.85 = 28,826.55 : x
2. Step 2: Convert to fraction form
   52,700.69/72,725.85 = 28,826.55/x
3. Step 3: Cross multiply
   52,700.69x = 72,725.85 × 28,826.55
4. Step 4: Simplify right side
   52,700.69x = 2,096,435,351.32
5. Step 5: Solve for x
   x = 2,096,435,351.32/52,700.69
6. Step 6: Final answer
   x = 39,780.03