Finding the Fourth Proportional to 52,078.64, 71,868.50 and 28,205.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,078.64 : 71,868.50 = 28,205.31 : x
2. Step 2: Convert to fraction form
   52,078.64/71,868.50 = 28,205.31/x
3. Step 3: Cross multiply
   52,078.64x = 71,868.50 × 28,205.31
4. Step 4: Simplify right side
   52,078.64x = 2,027,073,180.71
5. Step 5: Solve for x
   x = 2,027,073,180.71/52,078.64
6. Step 6: Final answer
   x = 38,923.32