Finding the Fourth Proportional to 51,164.80, 76,757.56 and 21,582.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,164.80 : 76,757.56 = 21,582.72 : x
2. Step 2: Convert to fraction form
   51,164.80/76,757.56 = 21,582.72/x
3. Step 3: Cross multiply
   51,164.80x = 76,757.56 × 21,582.72
4. Step 4: Simplify right side
   51,164.80x = 1,656,636,871.41
5. Step 5: Solve for x
   x = 1,656,636,871.41/51,164.80
6. Step 6: Final answer
   x = 32,378.45