Finding the Fourth Proportional to 7,404.09, 11,111.96 and 3,453.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,404.09 : 11,111.96 = 3,453.31 : x
2. Step 2: Convert to fraction form
   7,404.09/11,111.96 = 3,453.31/x
3. Step 3: Cross multiply
   7,404.09x = 11,111.96 × 3,453.31
4. Step 4: Simplify right side
   7,404.09x = 38,373,025.32
5. Step 5: Solve for x
   x = 38,373,025.32/7,404.09
6. Step 6: Final answer
   x = 5,182.68