Finding the Fourth Proportional to 17,172.84, 25,760.16 and 5,485.14

Step by Step Solution

1. Step 1: Write the proportion equation
   17,172.84 : 25,760.16 = 5,485.14 : x
2. Step 2: Convert to fraction form
   17,172.84/25,760.16 = 5,485.14/x
3. Step 3: Cross multiply
   17,172.84x = 25,760.16 × 5,485.14
4. Step 4: Simplify right side
   17,172.84x = 141,298,084.02
5. Step 5: Solve for x
   x = 141,298,084.02/17,172.84
6. Step 6: Final answer
   x = 8,228.00