Finding the Fourth Proportional to 6,921.71, 10,385.61 and 3,634.03

Step by Step Solution

1. Step 1: Write the proportion equation
   6,921.71 : 10,385.61 = 3,634.03 : x
2. Step 2: Convert to fraction form
   6,921.71/10,385.61 = 3,634.03/x
3. Step 3: Cross multiply
   6,921.71x = 10,385.61 × 3,634.03
4. Step 4: Simplify right side
   6,921.71x = 37,741,617.66
5. Step 5: Solve for x
   x = 37,741,617.66/6,921.71
6. Step 6: Final answer
   x = 5,452.64