Finding the Fourth Proportional to 17,128.31, 25,694.18 and 4,648.54

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.31 : 25,694.18 = 4,648.54 : x
2. Step 2: Convert to fraction form
   17,128.31/25,694.18 = 4,648.54/x
3. Step 3: Cross multiply
   17,128.31x = 25,694.18 × 4,648.54
4. Step 4: Simplify right side
   17,128.31x = 119,440,271.78
5. Step 5: Solve for x
   x = 119,440,271.78/17,128.31
6. Step 6: Final answer
   x = 6,973.27