Finding the Fourth Proportional to 17,146.53, 25,711.28 and 5,458.23

Step by Step Solution

1. Step 1: Write the proportion equation
   17,146.53 : 25,711.28 = 5,458.23 : x
2. Step 2: Convert to fraction form
   17,146.53/25,711.28 = 5,458.23/x
3. Step 3: Cross multiply
   17,146.53x = 25,711.28 × 5,458.23
4. Step 4: Simplify right side
   17,146.53x = 140,338,079.83
5. Step 5: Solve for x
   x = 140,338,079.83/17,146.53
6. Step 6: Final answer
   x = 8,184.63