Finding the Fourth Proportional to 6,602.70, 9,111.93 and 3,618.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,602.70 : 9,111.93 = 3,618.72 : x
2. Step 2: Convert to fraction form
   6,602.70/9,111.93 = 3,618.72/x
3. Step 3: Cross multiply
   6,602.70x = 9,111.93 × 3,618.72
4. Step 4: Simplify right side
   6,602.70x = 32,973,523.33
5. Step 5: Solve for x
   x = 32,973,523.33/6,602.70
6. Step 6: Final answer
   x = 4,993.95