Finding the Fourth Proportional to 8,151.65, 12,222.88 and 2,603.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,151.65 : 12,222.88 = 2,603.69 : x
2. Step 2: Convert to fraction form
   8,151.65/12,222.88 = 2,603.69/x
3. Step 3: Cross multiply
   8,151.65x = 12,222.88 × 2,603.69
4. Step 4: Simplify right side
   8,151.65x = 31,824,516.29
5. Step 5: Solve for x
   x = 31,824,516.29/8,151.65
6. Step 6: Final answer
   x = 3,904.06