Finding the Fourth Proportional to 7,406.79, 10,216.56 and 4,420.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,406.79 : 10,216.56 = 4,420.32 : x
2. Step 2: Convert to fraction form
   7,406.79/10,216.56 = 4,420.32/x
3. Step 3: Cross multiply
   7,406.79x = 10,216.56 × 4,420.32
4. Step 4: Simplify right side
   7,406.79x = 45,160,464.50
5. Step 5: Solve for x
   x = 45,160,464.50/7,406.79
6. Step 6: Final answer
   x = 6,097.17