Finding the Fourth Proportional to 12,455.89, 17,186.10 and 7,416.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,455.89 : 17,186.10 = 7,416.88 : x
2. Step 2: Convert to fraction form
   12,455.89/17,186.10 = 7,416.88/x
3. Step 3: Cross multiply
   12,455.89x = 17,186.10 × 7,416.88
4. Step 4: Simplify right side
   12,455.89x = 127,467,241.37
5. Step 5: Solve for x
   x = 127,467,241.37/12,455.89
6. Step 6: Final answer
   x = 10,233.49