Finding the Fourth Proportional to 12,456.01, 17,185.60 and 7,417.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,456.01 : 17,185.60 = 7,417.70 : x
2. Step 2: Convert to fraction form
   12,456.01/17,185.60 = 7,417.70/x
3. Step 3: Cross multiply
   12,456.01x = 17,185.60 × 7,417.70
4. Step 4: Simplify right side
   12,456.01x = 127,477,625.12
5. Step 5: Solve for x
   x = 127,477,625.12/12,456.01
6. Step 6: Final answer
   x = 10,234.23