Finding the Fourth Proportional to 8,771, 12,109.38 and 5,632.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,771 : 12,109.38 = 5,632.72 : x
2. Step 2: Convert to fraction form
   8,771/12,109.38 = 5,632.72/x
3. Step 3: Cross multiply
   8,771x = 12,109.38 × 5,632.72
4. Step 4: Simplify right side
   8,771x = 68,208,746.91
5. Step 5: Solve for x
   x = 68,208,746.91/8,771
6. Step 6: Final answer
   x = 7,776.62