Finding the Fourth Proportional to 6,603.09, 9,111.98 and 3,618.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,603.09 : 9,111.98 = 3,618.84 : x
2. Step 2: Convert to fraction form
   6,603.09/9,111.98 = 3,618.84/x
3. Step 3: Cross multiply
   6,603.09x = 9,111.98 × 3,618.84
4. Step 4: Simplify right side
   6,603.09x = 32,974,779.61
5. Step 5: Solve for x
   x = 32,974,779.61/6,603.09
6. Step 6: Final answer
   x = 4,993.84