Finding the Fourth Proportional to 6,665.91, 9,199.52 and 3,834.21

Step by Step Solution

1. Step 1: Write the proportion equation
   6,665.91 : 9,199.52 = 3,834.21 : x
2. Step 2: Convert to fraction form
   6,665.91/9,199.52 = 3,834.21/x
3. Step 3: Cross multiply
   6,665.91x = 9,199.52 × 3,834.21
4. Step 4: Simplify right side
   6,665.91x = 35,272,872.41
5. Step 5: Solve for x
   x = 35,272,872.41/6,665.91
6. Step 6: Final answer
   x = 5,291.53