Finding the Fourth Proportional to 6,616.61, 9,131.06 and 3,784.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,616.61 : 9,131.06 = 3,784.24 : x
2. Step 2: Convert to fraction form
   6,616.61/9,131.06 = 3,784.24/x
3. Step 3: Cross multiply
   6,616.61x = 9,131.06 × 3,784.24
4. Step 4: Simplify right side
   6,616.61x = 34,554,143.37
5. Step 5: Solve for x
   x = 34,554,143.37/6,616.61
6. Step 6: Final answer
   x = 5,222.33