Finding the Fourth Proportional to 3,345.52, 4,619.28 and 3,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345.52 : 4,619.28 = 3,096.72 : x
2. Step 2: Convert to fraction form
   3,345.52/4,619.28 = 3,096.72/x
3. Step 3: Cross multiply
   3,345.52x = 4,619.28 × 3,096.72
4. Step 4: Simplify right side
   3,345.52x = 14,304,616.76
5. Step 5: Solve for x
   x = 14,304,616.76/3,345.52
6. Step 6: Final answer
   x = 4,275.75