Finding the Fourth Proportional to 4,945.52, 7,415.40 and 3,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,945.52 : 7,415.40 = 3,404.72 : x
2. Step 2: Convert to fraction form
   4,945.52/7,415.40 = 3,404.72/x
3. Step 3: Cross multiply
   4,945.52x = 7,415.40 × 3,404.72
4. Step 4: Simplify right side
   4,945.52x = 25,247,360.69
5. Step 5: Solve for x
   x = 25,247,360.69/4,945.52
6. Step 6: Final answer
   x = 5,105.10