Finding the Fourth Proportional to 12,669.36, 17,484.30 and 7,635.21

Step by Step Solution

1. Step 1: Write the proportion equation
   12,669.36 : 17,484.30 = 7,635.21 : x
2. Step 2: Convert to fraction form
   12,669.36/17,484.30 = 7,635.21/x
3. Step 3: Cross multiply
   12,669.36x = 17,484.30 × 7,635.21
4. Step 4: Simplify right side
   12,669.36x = 133,496,302.20
5. Step 5: Solve for x
   x = 133,496,302.20/12,669.36
6. Step 6: Final answer
   x = 10,536.94