Finding the Fourth Proportional to 6,602.68, 9,111.61 and 3,618.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,602.68 : 9,111.61 = 3,618.34 : x
2. Step 2: Convert to fraction form
   6,602.68/9,111.61 = 3,618.34/x
3. Step 3: Cross multiply
   6,602.68x = 9,111.61 × 3,618.34
4. Step 4: Simplify right side
   6,602.68x = 32,968,902.93
5. Step 5: Solve for x
   x = 32,968,902.93/6,602.68
6. Step 6: Final answer
   x = 4,993.26