Finding the Fourth Proportional to 51,417.48, 70,953.30 and 28,757.37

Step by Step Solution

1. Step 1: Write the proportion equation
   51,417.48 : 70,953.30 = 28,757.37 : x
2. Step 2: Convert to fraction form
   51,417.48/70,953.30 = 28,757.37/x
3. Step 3: Cross multiply
   51,417.48x = 70,953.30 × 28,757.37
4. Step 4: Simplify right side
   51,417.48x = 2,040,430,300.82
5. Step 5: Solve for x
   x = 2,040,430,300.82/51,417.48
6. Step 6: Final answer
   x = 39,683.59