Finding the Fourth Proportional to 12,824.60, 17,698.82 and 7,159.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,824.60 : 17,698.82 = 7,159.37 : x
2. Step 2: Convert to fraction form
   12,824.60/17,698.82 = 7,159.37/x
3. Step 3: Cross multiply
   12,824.60x = 17,698.82 × 7,159.37
4. Step 4: Simplify right side
   12,824.60x = 126,712,276.65
5. Step 5: Solve for x
   x = 126,712,276.65/12,824.60
6. Step 6: Final answer
   x = 9,880.41