Finding the Fourth Proportional to 6,665.20, 10,003.86 and 3,547.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,665.20 : 10,003.86 = 3,547.84 : x
2. Step 2: Convert to fraction form
   6,665.20/10,003.86 = 3,547.84/x
3. Step 3: Cross multiply
   6,665.20x = 10,003.86 × 3,547.84
4. Step 4: Simplify right side
   6,665.20x = 35,492,076.92
5. Step 5: Solve for x
   x = 35,492,076.92/6,665.20
6. Step 6: Final answer
   x = 5,324.99