Finding the Fourth Proportional to 6,665.38, 9,199.03 and 3,870.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,665.38 : 9,199.03 = 3,870.88 : x
2. Step 2: Convert to fraction form
   6,665.38/9,199.03 = 3,870.88/x
3. Step 3: Cross multiply
   6,665.38x = 9,199.03 × 3,870.88
4. Step 4: Simplify right side
   6,665.38x = 35,608,341.25
5. Step 5: Solve for x
   x = 35,608,341.25/6,665.38
6. Step 6: Final answer
   x = 5,342.28