Finding the Fourth Proportional to 10,425.04, 14,386.55 and 5,709.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,425.04 : 14,386.55 = 5,709.29 : x
2. Step 2: Convert to fraction form
   10,425.04/14,386.55 = 5,709.29/x
3. Step 3: Cross multiply
   10,425.04x = 14,386.55 × 5,709.29
4. Step 4: Simplify right side
   10,425.04x = 82,136,885.57
5. Step 5: Solve for x
   x = 82,136,885.57/10,425.04
6. Step 6: Final answer
   x = 7,878.81