Finding the Fourth Proportional to 8,151.46, 12,222.59 and 2,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,151.46 : 12,222.59 = 2,603.50 : x
2. Step 2: Convert to fraction form
   8,151.46/12,222.59 = 2,603.50/x
3. Step 3: Cross multiply
   8,151.46x = 12,222.59 × 2,603.50
4. Step 4: Simplify right side
   8,151.46x = 31,821,451.95
5. Step 5: Solve for x
   x = 31,821,451.95/8,151.46
6. Step 6: Final answer
   x = 3,903.78