Finding the Fourth Proportional to 13,087.26, 19,628.78 and 3,597.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,087.26 : 19,628.78 = 3,597.37 : x
2. Step 2: Convert to fraction form
   13,087.26/19,628.78 = 3,597.37/x
3. Step 3: Cross multiply
   13,087.26x = 19,628.78 × 3,597.37
4. Step 4: Simplify right side
   13,087.26x = 70,611,917.25
5. Step 5: Solve for x
   x = 70,611,917.25/13,087.26
6. Step 6: Final answer
   x = 5,395.47