Finding the Fourth Proportional to 10,357.21, 14,288.17 and 6,105.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,357.21 : 14,288.17 = 6,105.37 : x
2. Step 2: Convert to fraction form
   10,357.21/14,288.17 = 6,105.37/x
3. Step 3: Cross multiply
   10,357.21x = 14,288.17 × 6,105.37
4. Step 4: Simplify right side
   10,357.21x = 87,234,564.47
5. Step 5: Solve for x
   x = 87,234,564.47/10,357.21
6. Step 6: Final answer
   x = 8,422.59