Finding the Fourth Proportional to 8,772, 12,110.76 and 5,633.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,772 : 12,110.76 = 5,633.72 : x
2. Step 2: Convert to fraction form
   8,772/12,110.76 = 5,633.72/x
3. Step 3: Cross multiply
   8,772x = 12,110.76 × 5,633.72
4. Step 4: Simplify right side
   8,772x = 68,228,630.83
5. Step 5: Solve for x
   x = 68,228,630.83/8,772
6. Step 6: Final answer
   x = 7,778.00