Finding the Fourth Proportional to 8,002.77, 12,005.67 and 3,620.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,002.77 : 12,005.67 = 3,620.22 : x
2. Step 2: Convert to fraction form
   8,002.77/12,005.67 = 3,620.22/x
3. Step 3: Cross multiply
   8,002.77x = 12,005.67 × 3,620.22
4. Step 4: Simplify right side
   8,002.77x = 43,463,166.65
5. Step 5: Solve for x
   x = 43,463,166.65/8,002.77
6. Step 6: Final answer
   x = 5,431.02