Finding the Fourth Proportional to 12,669.50, 17,484.45 and 7,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,669.50 : 17,484.45 = 7,080.50 : x
2. Step 2: Convert to fraction form
   12,669.50/17,484.45 = 7,080.50/x
3. Step 3: Cross multiply
   12,669.50x = 17,484.45 × 7,080.50
4. Step 4: Simplify right side
   12,669.50x = 123,798,648.23
5. Step 5: Solve for x
   x = 123,798,648.23/12,669.50
6. Step 6: Final answer
   x = 9,771.39