Finding the Fourth Proportional to 12,611.49, 17,404.43 and 7,309.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611.49 : 17,404.43 = 7,309.23 : x
2. Step 2: Convert to fraction form
   12,611.49/17,404.43 = 7,309.23/x
3. Step 3: Cross multiply
   12,611.49x = 17,404.43 × 7,309.23
4. Step 4: Simplify right side
   12,611.49x = 127,212,981.89
5. Step 5: Solve for x
   x = 127,212,981.89/12,611.49
6. Step 6: Final answer
   x = 10,087.07