Finding the Fourth Proportional to 7,410.15, 10,230.71 and 5,728.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,410.15 : 10,230.71 = 5,728.59 : x
2. Step 2: Convert to fraction form
   7,410.15/10,230.71 = 5,728.59/x
3. Step 3: Cross multiply
   7,410.15x = 10,230.71 × 5,728.59
4. Step 4: Simplify right side
   7,410.15x = 58,607,514.36
5. Step 5: Solve for x
   x = 58,607,514.36/7,410.15
6. Step 6: Final answer
   x = 7,909.09