Finding the Fourth Proportional to 12,665.34, 17,478.54 and 7,076.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.34 : 17,478.54 = 7,076.34 : x
2. Step 2: Convert to fraction form
   12,665.34/17,478.54 = 7,076.34/x
3. Step 3: Cross multiply
   12,665.34x = 17,478.54 × 7,076.34
4. Step 4: Simplify right side
   12,665.34x = 123,684,091.74
5. Step 5: Solve for x
   x = 123,684,091.74/12,665.34
6. Step 6: Final answer
   x = 9,765.56