Finding the Fourth Proportional to 12,447, 17,176.86 and 7,141.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,447 : 17,176.86 = 7,141.59 : x
2. Step 2: Convert to fraction form
   12,447/17,176.86 = 7,141.59/x
3. Step 3: Cross multiply
   12,447x = 17,176.86 × 7,141.59
4. Step 4: Simplify right side
   12,447x = 122,670,091.61
5. Step 5: Solve for x
   x = 122,670,091.61/12,447
6. Step 6: Final answer
   x = 9,855.39