Finding the Fourth Proportional to 8,628.82, 12,934.25 and 5,855.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,628.82 : 12,934.25 = 5,855.72 : x
2. Step 2: Convert to fraction form
   8,628.82/12,934.25 = 5,855.72/x
3. Step 3: Cross multiply
   8,628.82x = 12,934.25 × 5,855.72
4. Step 4: Simplify right side
   8,628.82x = 75,739,274.42
5. Step 5: Solve for x
   x = 75,739,274.42/8,628.82
6. Step 6: Final answer
   x = 8,777.48