Finding the Fourth Proportional to 12,349.69, 17,039.94 and 7,315.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,349.69 : 17,039.94 = 7,315.49 : x
2. Step 2: Convert to fraction form
   12,349.69/17,039.94 = 7,315.49/x
3. Step 3: Cross multiply
   12,349.69x = 17,039.94 × 7,315.49
4. Step 4: Simplify right side
   12,349.69x = 124,655,510.67
5. Step 5: Solve for x
   x = 124,655,510.67/12,349.69
6. Step 6: Final answer
   x = 10,093.82