Finding the Fourth Proportional to 3,721.23, 5,582.25 and 3,507.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,721.23 : 5,582.25 = 3,507.39 : x
2. Step 2: Convert to fraction form
   3,721.23/5,582.25 = 3,507.39/x
3. Step 3: Cross multiply
   3,721.23x = 5,582.25 × 3,507.39
4. Step 4: Simplify right side
   3,721.23x = 19,579,127.83
5. Step 5: Solve for x
   x = 19,579,127.83/3,721.23
6. Step 6: Final answer
   x = 5,261.47