Finding the Fourth Proportional to 7,039.82, 10,561.72 and 3,525.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,039.82 : 10,561.72 = 3,525.58 : x
2. Step 2: Convert to fraction form
   7,039.82/10,561.72 = 3,525.58/x
3. Step 3: Cross multiply
   7,039.82x = 10,561.72 × 3,525.58
4. Step 4: Simplify right side
   7,039.82x = 37,236,153.58
5. Step 5: Solve for x
   x = 37,236,153.58/7,039.82
6. Step 6: Final answer
   x = 5,289.37