Finding the Fourth Proportional to 51,216.01, 70,678.37 and 28,556.42

Step by Step Solution

1. Step 1: Write the proportion equation
   51,216.01 : 70,678.37 = 28,556.42 : x
2. Step 2: Convert to fraction form
   51,216.01/70,678.37 = 28,556.42/x
3. Step 3: Cross multiply
   51,216.01x = 70,678.37 × 28,556.42
4. Step 4: Simplify right side
   51,216.01x = 2,018,320,936.63
5. Step 5: Solve for x
   x = 2,018,320,936.63/51,216.01
6. Step 6: Final answer
   x = 39,408.01