Finding the Fourth Proportional to 7,404.99, 10,217.94 and 4,218.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,404.99 : 10,217.94 = 4,218.69 : x
2. Step 2: Convert to fraction form
   7,404.99/10,217.94 = 4,218.69/x
3. Step 3: Cross multiply
   7,404.99x = 10,217.94 × 4,218.69
4. Step 4: Simplify right side
   7,404.99x = 43,106,321.30
5. Step 5: Solve for x
   x = 43,106,321.30/7,404.99
6. Step 6: Final answer
   x = 5,821.25