Finding the Fourth Proportional to 17,128.56, 25,694.55 and 4,648.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.56 : 25,694.55 = 4,648.79 : x
2. Step 2: Convert to fraction form
   17,128.56/25,694.55 = 4,648.79/x
3. Step 3: Cross multiply
   17,128.56x = 25,694.55 × 4,648.79
4. Step 4: Simplify right side
   17,128.56x = 119,448,438.62
5. Step 5: Solve for x
   x = 119,448,438.62/17,128.56
6. Step 6: Final answer
   x = 6,973.64