Finding the Fourth Proportional to 8,520.48, 12,767.69 and 3,587.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,520.48 : 12,767.69 = 3,587.42 : x
2. Step 2: Convert to fraction form
   8,520.48/12,767.69 = 3,587.42/x
3. Step 3: Cross multiply
   8,520.48x = 12,767.69 × 3,587.42
4. Step 4: Simplify right side
   8,520.48x = 45,803,066.46
5. Step 5: Solve for x
   x = 45,803,066.46/8,520.48
6. Step 6: Final answer
   x = 5,375.64