Finding the Fourth Proportional to 6,603.81, 9,112.89 and 3,619.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,603.81 : 9,112.89 = 3,619.05 : x
2. Step 2: Convert to fraction form
   6,603.81/9,112.89 = 3,619.05/x
3. Step 3: Cross multiply
   6,603.81x = 9,112.89 × 3,619.05
4. Step 4: Simplify right side
   6,603.81x = 32,980,004.55
5. Step 5: Solve for x
   x = 32,980,004.55/6,603.81
6. Step 6: Final answer
   x = 4,994.09