Finding the Fourth Proportional to 10,425.06, 14,386.28 and 5,709.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,425.06 : 14,386.28 = 5,709.24 : x
2. Step 2: Convert to fraction form
   10,425.06/14,386.28 = 5,709.24/x
3. Step 3: Cross multiply
   10,425.06x = 14,386.28 × 5,709.24
4. Step 4: Simplify right side
   10,425.06x = 82,134,696.68
5. Step 5: Solve for x
   x = 82,134,696.68/10,425.06
6. Step 6: Final answer
   x = 7,878.58