Finding the Fourth Proportional to 10,162.37, 15,238.69 and 4,315.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,162.37 : 15,238.69 = 4,315.79 : x
2. Step 2: Convert to fraction form
   10,162.37/15,238.69 = 4,315.79/x
3. Step 3: Cross multiply
   10,162.37x = 15,238.69 × 4,315.79
4. Step 4: Simplify right side
   10,162.37x = 65,766,985.92
5. Step 5: Solve for x
   x = 65,766,985.92/10,162.37
6. Step 6: Final answer
   x = 6,471.62