Finding the Fourth Proportional to 12,665.22, 17,477.96 and 7,076.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.22 : 17,477.96 = 7,076.22 : x
2. Step 2: Convert to fraction form
   12,665.22/17,477.96 = 7,076.22/x
3. Step 3: Cross multiply
   12,665.22x = 17,477.96 × 7,076.22
4. Step 4: Simplify right side
   12,665.22x = 123,677,890.11
5. Step 5: Solve for x
   x = 123,677,890.11/12,665.22
6. Step 6: Final answer
   x = 9,765.16