Finding the Fourth Proportional to 7,145.43, 10,711.76 and 3,633.47

Step by Step Solution

1. Step 1: Write the proportion equation
   7,145.43 : 10,711.76 = 3,633.47 : x
2. Step 2: Convert to fraction form
   7,145.43/10,711.76 = 3,633.47/x
3. Step 3: Cross multiply
   7,145.43x = 10,711.76 × 3,633.47
4. Step 4: Simplify right side
   7,145.43x = 38,920,858.61
5. Step 5: Solve for x
   x = 38,920,858.61/7,145.43
6. Step 6: Final answer
   x = 5,446.96