Finding the Fourth Proportional to 6,601.22, 9,109.78 and 3,617.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,601.22 : 9,109.78 = 3,617.34 : x
2. Step 2: Convert to fraction form
   6,601.22/9,109.78 = 3,617.34/x
3. Step 3: Cross multiply
   6,601.22x = 9,109.78 × 3,617.34
4. Step 4: Simplify right side
   6,601.22x = 32,953,171.59
5. Step 5: Solve for x
   x = 32,953,171.59/6,601.22
6. Step 6: Final answer
   x = 4,991.98