Finding the Fourth Proportional to 12,456.29, 17,189.54 and 6,791.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,456.29 : 17,189.54 = 6,791.02 : x
2. Step 2: Convert to fraction form
   12,456.29/17,189.54 = 6,791.02/x
3. Step 3: Cross multiply
   12,456.29x = 17,189.54 × 6,791.02
4. Step 4: Simplify right side
   12,456.29x = 116,734,483.93
5. Step 5: Solve for x
   x = 116,734,483.93/12,456.29
6. Step 6: Final answer
   x = 9,371.53