Finding the Fourth Proportional to 17,115.02, 25,673.43 and 5,429.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,115.02 : 25,673.43 = 5,429.15 : x
2. Step 2: Convert to fraction form
   17,115.02/25,673.43 = 5,429.15/x
3. Step 3: Cross multiply
   17,115.02x = 25,673.43 × 5,429.15
4. Step 4: Simplify right side
   17,115.02x = 139,384,902.48
5. Step 5: Solve for x
   x = 139,384,902.48/17,115.02
6. Step 6: Final answer
   x = 8,144.01