Finding the Fourth Proportional to 13,597.49, 18,765.27 and 7,628.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,597.49 : 18,765.27 = 7,628.69 : x
2. Step 2: Convert to fraction form
   13,597.49/18,765.27 = 7,628.69/x
3. Step 3: Cross multiply
   13,597.49x = 18,765.27 × 7,628.69
4. Step 4: Simplify right side
   13,597.49x = 143,154,333.77
5. Step 5: Solve for x
   x = 143,154,333.77/13,597.49
6. Step 6: Final answer
   x = 10,528.00