Finding the Fourth Proportional to 51,150.87, 70,587.72 and 28,488.54

Step by Step Solution

1. Step 1: Write the proportion equation
   51,150.87 : 70,587.72 = 28,488.54 : x
2. Step 2: Convert to fraction form
   51,150.87/70,587.72 = 28,488.54/x
3. Step 3: Cross multiply
   51,150.87x = 70,587.72 × 28,488.54
4. Step 4: Simplify right side
   51,150.87x = 2,010,941,084.73
5. Step 5: Solve for x
   x = 2,010,941,084.73/51,150.87
6. Step 6: Final answer
   x = 39,313.92