Finding the Fourth Proportional to 12,707.38, 17,538.37 and 7,404.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,707.38 : 17,538.37 = 7,404.82 : x
2. Step 2: Convert to fraction form
   12,707.38/17,538.37 = 7,404.82/x
3. Step 3: Cross multiply
   12,707.38x = 17,538.37 × 7,404.82
4. Step 4: Simplify right side
   12,707.38x = 129,868,452.24
5. Step 5: Solve for x
   x = 129,868,452.24/12,707.38
6. Step 6: Final answer
   x = 10,219.92