Finding the Fourth Proportional to 9,411.72, 14,109.21 and 3,572.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.72 : 14,109.21 = 3,572.43 : x
2. Step 2: Convert to fraction form
   9,411.72/14,109.21 = 3,572.43/x
3. Step 3: Cross multiply
   9,411.72x = 14,109.21 × 3,572.43
4. Step 4: Simplify right side
   9,411.72x = 50,404,165.08
5. Step 5: Solve for x
   x = 50,404,165.08/9,411.72
6. Step 6: Final answer
   x = 5,355.47