Finding the Fourth Proportional to 8,709.53, 12,019.28 and 4,730.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,709.53 : 12,019.28 = 4,730.72 : x
2. Step 2: Convert to fraction form
   8,709.53/12,019.28 = 4,730.72/x
3. Step 3: Cross multiply
   8,709.53x = 12,019.28 × 4,730.72
4. Step 4: Simplify right side
   8,709.53x = 56,859,764.53
5. Step 5: Solve for x
   x = 56,859,764.53/8,709.53
6. Step 6: Final answer
   x = 6,528.46