Finding the Fourth Proportional to 8,145.77, 12,222.50 and 3,764.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,145.77 : 12,222.50 = 3,764.07 : x
2. Step 2: Convert to fraction form
   8,145.77/12,222.50 = 3,764.07/x
3. Step 3: Cross multiply
   8,145.77x = 12,222.50 × 3,764.07
4. Step 4: Simplify right side
   8,145.77x = 46,006,326.75
5. Step 5: Solve for x
   x = 46,006,326.75/8,145.77
6. Step 6: Final answer
   x = 5,647.88