Finding the Fourth Proportional to 12,665.33, 17,477.01 and 7,286.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.33 : 17,477.01 = 7,286.34 : x
2. Step 2: Convert to fraction form
   12,665.33/17,477.01 = 7,286.34/x
3. Step 3: Cross multiply
   12,665.33x = 17,477.01 × 7,286.34
4. Step 4: Simplify right side
   12,665.33x = 127,343,367.87
5. Step 5: Solve for x
   x = 127,343,367.87/12,665.33
6. Step 6: Final answer
   x = 10,054.49