Finding the Fourth Proportional to 17,272.23, 25,911.59 and 11,957.82

Step by Step Solution

1. Step 1: Write the proportion equation
   17,272.23 : 25,911.59 = 11,957.82 : x
2. Step 2: Convert to fraction form
   17,272.23/25,911.59 = 11,957.82/x
3. Step 3: Cross multiply
   17,272.23x = 25,911.59 × 11,957.82
4. Step 4: Simplify right side
   17,272.23x = 309,846,069.34
5. Step 5: Solve for x
   x = 309,846,069.34/17,272.23
6. Step 6: Final answer
   x = 17,938.97