Finding the Fourth Proportional to 6,602.54, 9,111.69 and 3,618.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,602.54 : 9,111.69 = 3,618.63 : x
2. Step 2: Convert to fraction form
   6,602.54/9,111.69 = 3,618.63/x
3. Step 3: Cross multiply
   6,602.54x = 9,111.69 × 3,618.63
4. Step 4: Simplify right side
   6,602.54x = 32,971,834.78
5. Step 5: Solve for x
   x = 32,971,834.78/6,602.54
6. Step 6: Final answer
   x = 4,993.81