Finding the Fourth Proportional to 7,009.42, 10,517.24 and 3,721.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,009.42 : 10,517.24 = 3,721.72 : x
2. Step 2: Convert to fraction form
   7,009.42/10,517.24 = 3,721.72/x
3. Step 3: Cross multiply
   7,009.42x = 10,517.24 × 3,721.72
4. Step 4: Simplify right side
   7,009.42x = 39,142,222.45
5. Step 5: Solve for x
   x = 39,142,222.45/7,009.42
6. Step 6: Final answer
   x = 5,584.23