Finding the Fourth Proportional to 12,546.27, 17,312.59 and 7,242.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,546.27 : 17,312.59 = 7,242.79 : x
2. Step 2: Convert to fraction form
   12,546.27/17,312.59 = 7,242.79/x
3. Step 3: Cross multiply
   12,546.27x = 17,312.59 × 7,242.79
4. Step 4: Simplify right side
   12,546.27x = 125,391,453.73
5. Step 5: Solve for x
   x = 125,391,453.73/12,546.27
6. Step 6: Final answer
   x = 9,994.32