Finding the Fourth Proportional to 7,456.72, 10,289.88 and 4,099.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,456.72 : 10,289.88 = 4,099.96 : x
2. Step 2: Convert to fraction form
   7,456.72/10,289.88 = 4,099.96/x
3. Step 3: Cross multiply
   7,456.72x = 10,289.88 × 4,099.96
4. Step 4: Simplify right side
   7,456.72x = 42,188,096.40
5. Step 5: Solve for x
   x = 42,188,096.40/7,456.72
6. Step 6: Final answer
   x = 5,657.73