Finding the Fourth Proportional to 12,774.46, 17,628.59 and 7,397.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,774.46 : 17,628.59 = 7,397.63 : x
2. Step 2: Convert to fraction form
   12,774.46/17,628.59 = 7,397.63/x
3. Step 3: Cross multiply
   12,774.46x = 17,628.59 × 7,397.63
4. Step 4: Simplify right side
   12,774.46x = 130,409,741.09
5. Step 5: Solve for x
   x = 130,409,741.09/12,774.46
6. Step 6: Final answer
   x = 10,208.63