Finding the Fourth Proportional to 6,602.51, 9,111.76 and 3,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,602.51 : 9,111.76 = 3,618.56 : x
2. Step 2: Convert to fraction form
   6,602.51/9,111.76 = 3,618.56/x
3. Step 3: Cross multiply
   6,602.51x = 9,111.76 × 3,618.56
4. Step 4: Simplify right side
   6,602.51x = 32,971,464.00
5. Step 5: Solve for x
   x = 32,971,464.00/6,602.51
6. Step 6: Final answer
   x = 4,993.78