Finding the Fourth Proportional to 12,714.50, 17,546.52 and 7,409.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,714.50 : 17,546.52 = 7,409.78 : x
2. Step 2: Convert to fraction form
   12,714.50/17,546.52 = 7,409.78/x
3. Step 3: Cross multiply
   12,714.50x = 17,546.52 × 7,409.78
4. Step 4: Simplify right side
   12,714.50x = 130,015,852.97
5. Step 5: Solve for x
   x = 130,015,852.97/12,714.50
6. Step 6: Final answer
   x = 10,225.79