Finding the Fourth Proportional to 6,920.72, 10,384.12 and 3,633.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,920.72 : 10,384.12 = 3,633.05 : x
2. Step 2: Convert to fraction form
   6,920.72/10,384.12 = 3,633.05/x
3. Step 3: Cross multiply
   6,920.72x = 10,384.12 × 3,633.05
4. Step 4: Simplify right side
   6,920.72x = 37,725,999.26
5. Step 5: Solve for x
   x = 37,725,999.26/6,920.72
6. Step 6: Final answer
   x = 5,451.16