Finding the Fourth Proportional to 7,456.22, 10,289.77 and 4,099.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,456.22 : 10,289.77 = 4,099.12 : x
2. Step 2: Convert to fraction form
   7,456.22/10,289.77 = 4,099.12/x
3. Step 3: Cross multiply
   7,456.22x = 10,289.77 × 4,099.12
4. Step 4: Simplify right side
   7,456.22x = 42,178,950.55
5. Step 5: Solve for x
   x = 42,178,950.55/7,456.22
6. Step 6: Final answer
   x = 5,656.88