Finding the Fourth Proportional to 13,618.77, 18,794.32 and 7,650.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,618.77 : 18,794.32 = 7,650.56 : x
2. Step 2: Convert to fraction form
   13,618.77/18,794.32 = 7,650.56/x
3. Step 3: Cross multiply
   13,618.77x = 18,794.32 × 7,650.56
4. Step 4: Simplify right side
   13,618.77x = 143,787,072.82
5. Step 5: Solve for x
   x = 143,787,072.82/13,618.77
6. Step 6: Final answer
   x = 10,558.01