Finding the Fourth Proportional to 7,446.72, 10,276.02 and 4,089.36

Step by Step Solution

1. Step 1: Write the proportion equation
   7,446.72 : 10,276.02 = 4,089.36 : x
2. Step 2: Convert to fraction form
   7,446.72/10,276.02 = 4,089.36/x
3. Step 3: Cross multiply
   7,446.72x = 10,276.02 × 4,089.36
4. Step 4: Simplify right side
   7,446.72x = 42,022,345.15
5. Step 5: Solve for x
   x = 42,022,345.15/7,446.72
6. Step 6: Final answer
   x = 5,643.07