Finding the Fourth Proportional to 55,281.15, 82,843.20 and 42,582.87

Step by Step Solution

1. Step 1: Write the proportion equation
   55,281.15 : 82,843.20 = 42,582.87 : x
2. Step 2: Convert to fraction form
   55,281.15/82,843.20 = 42,582.87/x
3. Step 3: Cross multiply
   55,281.15x = 82,843.20 × 42,582.87
4. Step 4: Simplify right side
   55,281.15x = 3,527,701,215.98
5. Step 5: Solve for x
   x = 3,527,701,215.98/55,281.15
6. Step 6: Final answer
   x = 63,813.82