Finding the Fourth Proportional to 17,100.42, 25,634.23 and 5,405.64

Step by Step Solution

1. Step 1: Write the proportion equation
   17,100.42 : 25,634.23 = 5,405.64 : x
2. Step 2: Convert to fraction form
   17,100.42/25,634.23 = 5,405.64/x
3. Step 3: Cross multiply
   17,100.42x = 25,634.23 × 5,405.64
4. Step 4: Simplify right side
   17,100.42x = 138,569,405.54
5. Step 5: Solve for x
   x = 138,569,405.54/17,100.42
6. Step 6: Final answer
   x = 8,103.27