Finding the Fourth Proportional to 17,261.67, 25,871.43 and 7,380.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,261.67 : 25,871.43 = 7,380.09 : x
2. Step 2: Convert to fraction form
   17,261.67/25,871.43 = 7,380.09/x
3. Step 3: Cross multiply
   17,261.67x = 25,871.43 × 7,380.09
4. Step 4: Simplify right side
   17,261.67x = 190,933,481.83
5. Step 5: Solve for x
   x = 190,933,481.83/17,261.67
6. Step 6: Final answer
   x = 11,061.12