Finding the Fourth Proportional to 6,619.43, 9,131.63 and 3,823.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,619.43 : 9,131.63 = 3,823.31 : x
2. Step 2: Convert to fraction form
   6,619.43/9,131.63 = 3,823.31/x
3. Step 3: Cross multiply
   6,619.43x = 9,131.63 × 3,823.31
4. Step 4: Simplify right side
   6,619.43x = 34,913,056.01
5. Step 5: Solve for x
   x = 34,913,056.01/6,619.43
6. Step 6: Final answer
   x = 5,274.33