Finding the Fourth Proportional to 13,597.15, 18,763.96 and 7,628.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,597.15 : 18,763.96 = 7,628.82 : x
2. Step 2: Convert to fraction form
   13,597.15/18,763.96 = 7,628.82/x
3. Step 3: Cross multiply
   13,597.15x = 18,763.96 × 7,628.82
4. Step 4: Simplify right side
   13,597.15x = 143,146,873.33
5. Step 5: Solve for x
   x = 143,146,873.33/13,597.15
6. Step 6: Final answer
   x = 10,527.71