Finding the Fourth Proportional to 51,338.88, 70,849.17 and 28,678.83

Step by Step Solution

1. Step 1: Write the proportion equation
   51,338.88 : 70,849.17 = 28,678.83 : x
2. Step 2: Convert to fraction form
   51,338.88/70,849.17 = 28,678.83/x
3. Step 3: Cross multiply
   51,338.88x = 70,849.17 × 28,678.83
4. Step 4: Simplify right side
   51,338.88x = 2,031,870,947.83
5. Step 5: Solve for x
   x = 2,031,870,947.83/51,338.88
6. Step 6: Final answer
   x = 39,577.63