Finding the Fourth Proportional to 17,100.15, 25,644.06 and 7,240.11

Step by Step Solution

1. Step 1: Write the proportion equation
   17,100.15 : 25,644.06 = 7,240.11 : x
2. Step 2: Convert to fraction form
   17,100.15/25,644.06 = 7,240.11/x
3. Step 3: Cross multiply
   17,100.15x = 25,644.06 × 7,240.11
4. Step 4: Simplify right side
   17,100.15x = 185,665,815.25
5. Step 5: Solve for x
   x = 185,665,815.25/17,100.15
6. Step 6: Final answer
   x = 10,857.55